'No Prime Left Behind' 12th Team Drive, Part B - Complete!

Started: 2010-03-26 Last update: 2017-12-29

This page reflects the search of primes of the form k·2ⁿ-1.

Data table:

Started	2010-03-26
Ended	2012-01-03
k-Range	2001 ≤ k ≤ 2999
n-Range	250001 ≤ n ≤ 350000
Candidates	1612951 16130 per 1000 n-range 3226 n's per k-value
Sieve depth p	k ≤ 2369: 30T = 30·10¹² k > 2369: 100P = 100·10¹⁵
Primes new	367
Primes confirmed	73
Primes total	440
Forum	here upto post #97 (2012-02-19)

Notes:
The range was done by LLRnet-server GB7000 (maintained by G.Barnes).
The range 2401 ≤ k ≤ 2475 was done by S.Gilvey (reserved on 2010-12-21, done on 2011-01-06, old sieve to p=30T was used).

Summary of candidates/primes:

k-Range	#cand.	all	new	conf.
2000-2100	183085	40	27	13
2100-2200	180088	50	29	21
2200-2300	177755	30	14	16
2300-2400	173152	42	40	2
2400-2500	177082	60	58	2
2500-2600	141989	51	47	4
2600-2700	147828	44	42	2
2700-2800	147063	42	40	2
2800-2900	141922	40	38	2
2900-3000	142987	40	32	8
Sum	1612951	439	367	72

Completed ranges overview:

k	#n	#primes	completed	primes
2001	6266	2	2010-06-12	287959, 294026
2003	2200	0	2010-06-13	-
2005	5056	1	2010-06-17	283745
2007	5075	1	2010-06-20	260028
2009	3068	1	2010-06-24	261816
2011	3666	0	2010-06-25	-
2013	4374	1	2010-06-27	347166
2015	5182	5	2010-07-01	253756, 258296, 310208, 319768, 322368
2017	821	0	2010-07-01	-
2019	4978	1	2010-07-05	253707
2021	2675	1	2010-07-06	253870
2023	1684	0	2010-07-08	-
2025	2732	0	2010-07-09	-
2027	1463	0	2010-07-10	-
2029	4929	1	2010-07-14	307763
2031	3528	0	2010-07-16	-
2033	3771	1	2010-07-18	347582
2035	3730	1	2010-07-21	341645
2037	5971	1	2010-07-25	278081
2039	662	1	2010-07-25	319920
2041	1861	1	2010-08-23	-
2043	8258	4	2010-09-19	263444, 303974, 310708, 312386
2045	3650	0	2010-09-20	-
2047	2272	0	2010-09-21	-
2049	5907	2	2010-09-23	255708, 348024
2051	1948	0	2010-09-22	-
2053	1285	0	2010-09-24	-
2055	4141	1	2010-09-25	277335
2057	4297	2	2010-09-25	260294, 345230
2059	1949	0	2010-09-27	-
2061	6399	2	2010-09-28	267737, 299691
2063	3771	0	2010-09-28	-
2065	3009	0	2010-10-02	-
2067	5711	0	2010-10-01	-
2069	1198	1	2010-10-01	257024
2071	5461	0	2010-10-02	-
2073	2540	0	2010-10-02	-
2075	2968	0	2010-10-02	-
2077	3130	0	2010-10-02	-
2079	6659	3	2010-10-01	271075, 309616, 318307
2081	1128	0	2010-10-01	-
2083	1416	0	2010-10-02	-
2085	6778	1	2010-10-03	290460
2087	2357	0	2010-10-02	-
2089	2601	0	2010-10-02	-
2091	6090	3	2010-10-03	266211, 267951, 311622
2093	3688	0	2010-10-03	-
2095	3786	2	2010-10-03	263467, 341979
2097	5338	1	2010-10-03	298089
2099	1658	0	2010-10-03	-
2101	4410	1	2010-10-06	254659
2103	8128	3	2010-10-06	262912, 312031, 319026
2105	2857	1	2010-10-06	336626
2107	2894	0	2010-10-05	-
2109	2468	2	2010-10-05	259203, 280269
2111	1831	0	2010-10-05	-
2113	3699	3	2010-10-06	271263, 287795, 306079
2115	5909	0	2010-10-06	-
2117	4420	2	2010-10-07	257440, 274280
2119	3640	3	2010-10-07	277185, 283659, 348415
2121	4818	1	2010-10-08	278933
2123	3030	0	2010-10-08	-
2125	2370	0	2010-10-08	-
2127	7246	3	2010-10-09	261934, 273109, 274506
2129	2097	0	2010-10-09	-
2131	4611	0	2010-10-09	-
2133	4940	1	2010-10-12	255572
2135	3625	0	2010-10-10	-
2137	1607	0	2010-10-10	-
2139	4219	0	2010-10-11	-
2141	2719	1	2010-10-11	297278
2143	1430	1	2010-10-11	271619
2145	10749	2	2010-10-14	323459, 345415
2147	4894	2	2010-10-14	267758, 325788
2149	3792	0	2010-10-15	-
2151	2389	1	2010-10-16	339975
2153	3349	0	2010-10-16	-
2155	2863	0	2010-10-17	-
2157	4059	2	2010-10-17	267781, 281861
2159	1962	0	2010-10-20	-
2161	2629	1	2010-10-19	299325
2163	4527	2	2010-10-22	260011, 346895
2165	2744	0	2010-10-21	-
2167	1063	0	2010-10-21	-
2169	6236	3	2010-10-23	277033, 305396, 313377
2171	558	0	2010-10-23	-
2173	1881	0	2010-10-25	-
2175	6636	2	2010-10-26	274393, 301200
2177	3274	0	2010-11-08	-
2179	2128	0	2010-11-08	-
2181	3541	2	2010-11-10	264233, 319607
2183	3261	1	2010-11-11	256762
2185	2417	0	2010-11-11	-
2187	5872	3	2010-11-13	296182, 317977, 323332
2189	2033	0	2010-11-14	-
2191	1873	2	2010-11-14	312143, 327081
2193	3940	2	2010-11-16	253479, 317007
2195	3692	1	2010-11-17	347798
2197	1834	0	2010-11-17	-
2199	2924	2	2010-11-18	256613, 278180
2201	1673	3	2010-11-19	257694, 326214, 339534
2203	681	0	2010-11-19	-
2205	7372	0	2010-11-21	-
2207	4554	0	2010-11-23	-
2209	3229	0	2010-11-23	-
2211	9064	3	2010-11-24	267747, 268226, 349073
2213	2034	0	2010-11-25	-
2215	4453	0	2010-11-26	-
2217	5673	0	2010-11-26	-
2219	2041	0	2010-11-27	-
2221	2536	1	2010-11-27	334753
2223	4113	0	2010-11-28	-
2225	4596	0	2010-11-28	-
2227	1862	0	2010-11-29	-
2229	6014	0	2010-12-01	256820
2231	1257	0	2010-12-01	-
2233	1942	0	2010-12-02	-
2235	3997	0	2010-12-02	-
2237	1252	0	2010-12-02	-
2239	4355	0	2010-12-04	-
2241	4946	3	2010-12-05	250702, 267629, 290753
2243	3299	0	2010-12-05	-
2245	4532	3	2010-12-07	255865, 279863, 283323
2247	5931	3	2010-12-07	262845, 279914, 337624
2249	1182	0	2010-12-07	-
2251	2261	2	2010-12-08	301137, 322229
2253	7398	1	2010-12-10	344163
2255	3120	1	2010-12-11	250480
2257	1102	0	2010-12-11	-
2259	7143	0	2010-12-13	-
2261	1648	0	2010-12-14	-
2263	526	0	2010-12-14	-
2265	3371	0	2010-12-15	-
2267	1983	1	2010-12-16	261774
2269	2832	1	2010-12-16	293551
2271	6664	1	2010-12-18	338421
2273	4673	0	2010-12-20	-
2275	3764	0	2010-12-21	-
2277	4400	3	2010-12-22	257710, 334374, 340569
2279	559	0	2010-12-23	-
2281	3404	1	2010-12-24	258997
2283	4554	1	2010-12-26	299792
2285	4203	1	2010-12-26	301776
2287	1011	0	2010-12-27	-
2289	6480	0	2010-12-29	-
2291	962	1	2010-12-29	279534
2293	340	0	2010-12-31	-
2295	6045	0	2010-12-31	-
2297	1570	0	2010-12-31	-
2299	5154	0	2011-01-02	-
2301	5678	1	2011-01-31	279742
2303	4358	0	2011-02-18	-
2305	2616	0	2011-02-18	-
2307	5785	2	2011-02-23	265454, 343886
2309	2603	1	2011-02-24	289012
2311	3408	0	2011-02-25	-
2313	5674	3	2011-02-28	284644, 289699, 328964
2315	3461	1	2011-02-28	263910
2317	989	0	2011-03-03	-
2319	4885	1	2011-03-04	325092
2321	1325	0	2011-03-05	-
2323	2499	2	2011-03-06	250591, 286651
2325	5526	0	2011-03-12	-
2327	2611	2	2011-03-16	314306, 327830
2329	2473	0	2011-03-23	-
2331	5284	2	2011-03-25	268053, 319673
2333	1278	3	2011-03-25	317154, 325864, 327204
2335	2745	0	2011-03-26	-
2337	5522	0	2011-03-27	-
2339	2060	0	2011-03-31	-
2341	4424	4	2011-05-12	255665, 268973, 331283, 333187
2343	7100	4	2011-07-05	250430, 313490, 341294, 347091
2345	3699	0	2011-06-24	-
2347	876	0	2011-06-24	-
2349	4402	0	2011-07-05	-
2351	3108	1	2011-07-05	275638
2353	1488	0	2011-06-24	-
2355	6478	1	2011-06-24	319806
2357	2102	0	2011-07-05	-
2359	3244	1	2011-07-06	271815
2361	3267	1	2011-07-07	335622
2363	2130	0	2011-07-07	-
2365	5365	0	2011-17-08	-
2367	4406	0	2011-11-13	-
2369	799	0	2011-12-02	-
2371	1622	0	2011-12-10	-
2373	5090	1	2011-12-12	252978
2375	2578	3	2011-12-12	255198, 319290, 336166
2377	806	1	2011-12-10	345273
2379	6251	1	2011-12-12	282551
2381	854	0	2011-12-10	-
2383	1429	0	2011-12-12	-
2385	7664	0	2011-12-12	-
2387	4760	0	2011-12-10	-
2389	2079	2	2011-12-10	266997, 298047
2391	2380	1	2011-12-10	272055
2393	2469	1	2011-12-10	347504
2395	1814	0	2011-12-11	-
2397	8231	1	2011-12-11	303978
2399	1457	1	2011-12-11	316636
2401	7191	0	2011-01-06	-
2403	4588	0	2011-01-06	-
2405	3133	1	2011-01-06	349974
2407	2311	0	2011-01-06	-
2409	5415	3	2011-01-06	264232, 281015, 306643
2411	2204	0	2011-01-06	-
2413	3077	1	2011-01-06	324067
2415	6011	3	2011-01-06	276906, 289219, 348006
2417	1823	1	2011-01-06	340060
2419	2518	1	2011-01-06	280379
2421	5996	0	2011-01-06	-
2423	2862	0	2011-01-06	-
2425	3758	2	2011-01-06	277173, 323539
2427	5073	0	2011-01-06	-
2429	1133	0	2011-01-06	-
2431	3231	1	2011-01-06	324889
2433	3598	1	2011-01-06	269234
2435	2673	0	2011-01-06	-
2437	2162	0	2011-01-06	-
2439	4475	3	2011-01-06	257704, 318236, 349865
2441	716	1	2011-01-06	293154
2443	3723	2	2011-01-06	269835, 323535
2445	4887	1	2011-01-06	274273
2447	2134	0	2011-01-06	-
2449	5492	3	2011-01-06	267009, 286089, 317419
2451	3357	2	2011-01-06	333551, 340253
2453	4004	2	2011-01-06	341966, 342420
2455	3501	0	2011-01-06	-
2457	5675	3	2011-01-06	251093, 265565, 335250
2459	1976	0	2011-01-06	-
2461	3484	1	2011-01-06	254061
2463	6583	1	2011-01-06	305230
2465	2437	1	2011-01-06	263114
2467	2702	0	2011-01-06	-
2469	6829	3	2011-01-06	293681, 332551, 348463
2471	2564	0	2011-01-06	-
2473	1171	0	2011-01-06	-
2475	6801	5	2011-01-06	257265, 279170, 297764, 328409, 333990
2477	4361	2	2011-12-11	260132, 277872
2479	3077	3	2011-12-11	250187, 254219, 295543
2481	3824	1	2011-12-13	287527
2483	3020	0	2011-12-11	-
2485	2463	0	2011-12-11	-
2487	2986	2	2011-12-11	295158, 304512
2489	1076	1	2011-12-11	322620
2491	2861	5	2011-12-11	282535, 294181, 297499, 314915, 338749
2493	2339	0	2011-12-11	-
2495	1976	1	2011-12-11	300068
2497	2508	1	2011-12-11	279149
2499	5323	2	2011-12-11	282832, 333251
2501	1309	0	2011-12-11	-
2503	939	1	2011-12-11	305475
2505	6271	3	2011-12-13	288344, 326232, 345204
2507	3331	3	2011-12-11	255466, 318922, 334556
2509	3896	5	2011-12-13	260623, 281361, 306403, 314431, 319149
2511	5281	1	2011-12-13	317138
2513	1727	0	2011-12-11	-
2515	1798	0	2011-12-11	-
2517	2670	0	2011-12-11	-
2519	1028	1	2011-12-11	339068
2521	1460	0	2011-12-11	-
2523	5191	3	2011-12-11	299550, 323850, 349007
2525	4598	2	2011-12-11	254890, 327108
2527	1505	0	2011-12-11	-
2529	3696	3	2011-12-11	302904, 345333, 349251
2531	1307	1	2011-12-11	260754
2533	1874	1	2011-12-11	254827
2535	4418	2	2011-12-12	258730, 285835
2537	3127	0	2011-12-12	-
2539	3255	0	2011-12-12	-
2541	3537	0	2011-12-12	-
2543	2257	1	2011-12-12	258916
2545	2306	1	2011-12-12	330077
2547	6253	0	2011-12-12	-
2549	747	0	2011-12-12	-
2551	4325	1	2011-12-12	260753
2553	4820	1	2011-12-12	283122
2555	3325	2	2011-12-12	308004, 319998
2557	1660	2	2011-12-12	251517, 253137
2559	2668	0	2011-12-12	-
2561	1354	1	2011-12-12	336226
2563	737	0	2011-12-12	-
2565	5817	1	2011-12-12	254997
2567	4095	3	2011-12-12	296754, 317304, 348116
2569	1818	2	2011-12-14	307009, 340213
2571	2320	2	2011-12-12	275650, 306195
2573	2252	0	2011-12-12	-
2575	1937	2	2011-12-12	282705, 315513
2577	2931	0	2011-12-14	-
2579	1099	0	2011-12-12	-
2581	2500	1	2011-12-12	251019
2583	3754	0	2011-12-14	-
2585	1999	2	2011-12-12	250180, 321978
2587	1388	0	2011-12-12	-
2589	3867	1	2011-12-12	259819
2591	450	0	2011-12-12	-
2593	1511	0	2011-12-12	-
2595	7692	2	2011-12-12	272907, 289987
2597	2225	1	2011-12-12	273286
2599	1664	0	2011-12-12	-
2601	3333	0	2011-12-12	-
2603	2949	0	2011-12-12	-
2605	1818	0	2011-12-12	-
2607	5493	1	2011-12-13	304326
2609	1987	1	2011-12-13	346728
2611	3790	0	2011-12-13	-
2613	3732	0	2011-12-13	-
2615	2166	3	2011-12-13	254562, 286956, 308010
2617	2029	0	2011-12-13	-
2619	2737	2	2011-12-13	270004, 326585
2621	1608	0	2011-12-13	-
2623	2781	0	2011-12-13	-
2625	6425	2	2011-12-13	262198, 335686
2627	1706	0	2011-12-13	-
2629	2228	0	2011-12-13	-
2631	3543	1	2011-12-13	268105
2633	2847	0	2011-12-13	-
2635	2909	1	2011-12-13	259585
2637	4605	1	2011-12-13	319316
2639	1549	1	2011-12-13	298212
2641	3086	1	2011-12-13	310779
2643	3053	1	2011-12-13	308739
2645	3087	2	2011-12-13	258674, 260780
2647	993	0	2011-12-13	-
2649	5130	4	2011-12-13	265449, 275995, 281397, 295443
2651	1382	1	2011-12-13	319958
2653	1237	0	2011-12-13	-
2655	4598	0	2011-12-16	-
2657	2647	2	2011-12-16	306722, 312576
2659	2287	0	2011-12-16	-
2661	3654	1	2011-12-23	332770
2663	3382	0	2011-12-23	-
2665	3777	1	2011-12-23	252715
2667	3930	0	2011-12-24	-
2669	1034	1	2011-12-24	299896
2671	1813	3	2011-12-24	266307, 285347, 290901
2673	6515	1	2011-12-24	273047
2675	1949	0	2011-12-24	-
2677	1070	1	2011-12-26	308785
2679	5227	0	2011-12-24	-
2681	2009	1	2011-12-24	310990
2683	362	0	2011-12-24	-
2685	4717	4	2011-12-24	277802, 284501, 303789, 328869
2687	2175	2	2011-12-24	250070, 269586
2689	1894	0	2011-12-24	-
2691	5550	1	2011-12-24	330031
2693	3702	0	2011-12-25	-
2695	2800	0	2011-12-25	-
2697	4015	2	2011-12-25	277174, 323533
2699	518	2	2011-12-25	257592, 349040
2701	2235	1	2011-12-25	289605
2703	3027	0	2011-12-25	-
2705	2379	1	2011-12-25	337924
2707	2010	1	2011-12-25	263533
2709	4219	1	2011-12-25	327604
2711	1183	0	2011-12-25	-
2713	1238	0	2011-12-25	-
2715	5004	2	2011-12-27	250091, 268882
2717	2657	1	2011-12-25	269876
2719	3231	0	2011-12-25	-
2721	6506	3	2011-12-26	252351, 267217, 274382
2723	4781	2	2011-12-26	334914, 344520
2725	1702	1	2011-12-26	326199
2727	2843	0	2011-12-26	-
2729	1988	1	2011-12-26	293528
2731	2696	0	2011-12-26	-
2733	3878	0	2011-12-26	-
2735	4449	2	2011-12-26	259978, 286418
2737	1462	0	2011-12-26	-
2739	2857	1	2011-12-26	338091
2741	670	0	2011-12-27	-
2743	2078	1	2011-12-26	318467
2745	3844	2	2011-12-26	302782, 347897
2747	3678	3	2011-12-26	253430, 261434, 296852
2749	3322	0	2011-12-27	-
2751	4386	2	2011-12-28	290614, 334282
2753	1909	1	2011-12-27	272778
2755	2845	0	2011-12-27	-
2757	6787	1	2011-12-27	258885
2759	548	0	2011-12-27	-
2761	3160	1	2011-12-27	343753
2763	3191	0	2011-12-27	-
2765	2841	2	2011-12-27	341546, 343046
2767	766	0	2011-12-27	-
2769	3424	3	2011-12-27	259713, 273044, 307560
2771	2227	0	2011-12-27	-
2773	866	1	2011-12-27	291859
2775	4090	1	2011-12-27	317517
2777	3843	1	2011-12-28	250694
2779	1744	0	2011-12-28	-
2781	3497	0	2011-12-28	-
2783	2251	0	2011-12-28	-
2785	3832	2	2011-12-28	254225, 300603
2787	2643	0	2011-12-28	-
2789	961	2	2011-12-28	320452, 342228
2791	1900	0	2011-12-28	-
2793	7108	1	2011-12-30	305156
2795	1988	1	2011-12-28	295656
2797	520	0	2011-12-30	-
2799	5799	0	2011-12-28	-
2801	852	0	2011-12-28	-
2803	825	0	2011-12-28	-
2805	8356	2	2011-12-31	276468, 278127
2807	3471	1	2011-12-31	267422
2809	3498	1	2012-01-02	328371
2811	2786	1	2011-12-31	259550
2813	5223	1	2011-12-31	250502
2815	1170	0	2011-12-31	-
2817	4773	3	2011-12-31	253266, 262793, 321813
2819	1318	0	2011-12-31	-
2821	4649	2	2012-01-02	251821, 331645
2823	1877	0	2011-12-31	-
2825	2243	0	2012-01-01	-
2827	1297	0	2012-01-01	-
2829	2610	0	2012-01-03	-
2831	1029	0	2012-01-01	-
2833	1839	1	2012-01-01	324279
2835	6356	1	2012-01-03	300086
2837	1896	0	2012-01-01	-
2839	2393	2	2012-01-01	273089, 289295
2841	4253	1	2012-01-01	319930
2843	1163	0	2012-01-01	-
2845	2499	0	2012-01-01	-
2847	4155	0	2012-01-03	-
2849	1848	0	2012-01-03	-
2851	2992	0	2012-01-03	-
2853	2819	0	2012-01-02	-
2855	2457	1	2012-01-02	309472
2857	1322	2	2012-01-02	287425, 337705
2859	5103	2	2012-01-02	269671, 298996
2861	1690	0	2012-01-02	-
2863	1372	0	2012-01-02	-
2865	3571	2	2012-01-02	309568, 329637
2867	2853	1	2012-01-02	327978
2869	4784	1	2012-01-02	282885
2871	3162	1	2012-01-02	259849
2873	3696	0	2012-01-02	-
2875	2909	1	2012-01-02	339691
2877	3667	1	2012-01-02	269777
2879	1112	1	2012-01-02	331992
2881	1406	0	2012-01-02	-
2883	4892	1	2012-01-02	300007
2885	1351	0	2012-01-02	-
2887	1944	0	2012-01-02	-
2889	4431	3	2012-01-02	258391, 258825, 336111
2891	1007	0	2012-01-02	-
2893	1417	3	2012-01-02	251007, 327283, 339847
2895	4889	3	2012-01-02	267876, 301803, 307281
2897	3281	1	2012-01-02	321484
2899	1416	0	2012-01-02	-
2901	4321	0	2012-01-02	-
2903	3048	2	2012-01-02	269076, 335270
2905	3408	2	2012-01-02	270589, 346335
2907	2867	0	2012-01-02	-
2909	1137	0	2012-01-02	-
2911	3119	0	2012-01-02	-
2913	3588	2	2012-01-02	298972, 318263
2915	3032	0	2012-01-02	-
2917	2191	1	2011-01-02	279437
2919	5554	1	2012-01-02	307995
2921	1534	0	2012-01-02	-
2923	982	0	2012-01-02	-
2925	5984	4	2012-01-02	251947, 285189, 288350, 292324
2927	1965	1	2012-01-02	322948
2929	3192	0	2012-01-02	-
2931	5151	0	2012-01-02	-
2933	4058	0	2012-01-03	-
2935	3395	0	2012-01-03	-
2937	2873	2	2012-01-03	255381, 257529
2939	640	1	2012-01-03	309244
2941	2037	1	2012-01-03	330161
2943	4834	1	2012-01-03	306762
2945	2108	1	2012-01-03	299610
2947	1179	0	2012-01-03	-
2949	3246	1	2012-01-03	250035
2951	840	0	2012-01-03	-
2953	1100	0	2012-01-03	-
2955	4317	1	2012-01-03	318355
2957	2597	2	2012-01-03	256712, 267032
2959	3983	1	2012-01-03	260639
2961	3893	0	2012-01-03	-
2963	1837	3	2012-01-03	270376, 298104, 302964
2965	2773	1	2012-01-03	311363
2967	4450	2	2012-01-03	251661, 330364
2969	1243	1	2012-01-03	261952
2971	4399	0	2012-01-03	-
2973	4291	3	2012-01-03	268580, 286918, 343538
2975	2467	1	2012-01-03	267372
2977	975	0	2012-01-03	-
2979	3806	1	2012-01-03	322700
2981	1222	0	2012-01-03	-
2983	513	0	2012-01-03	-
2985	5791	1	2012-01-03	323957
2987	3103	1	2012-01-03	292052
2989	3008	0	2012-01-03	-
2991	3095	0	2012-01-03	-
2993	1573	1	2012-01-03	333626
2995	2562	0	2012-01-03	-
2997	2441	0	2012-01-03	-
2999	1265	1	2012-01-03	266156

'No Prime Left Behind' 12th Team Drive, Part B - Complete!

This page reflects the search of primes of the form k·2n-1.

Data table:

Summary of candidates/primes:

Completed ranges overview:

This page reflects the search of primes of the form k·2ⁿ-1.