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RPS Drive 5

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Overview

RPS Drive 5 - This drive is done.
Project Riesel Prime Search
Drive name RPS Drive 5
Purpose Search for Riesel primes k < 300 where k divisible by 3.
Date start 2006-11-12
Date end 2008-07-04
k-values 51 - 291
n-range 260000 - 1000000
Primes found 57 new, 4 confirmed
Link MersenneForum

k-history

2006-11-12: k = 51, 57, 117, 129, 135, 213, 237, 249, 261, 267, 273, 279, 285, 291. See n-values by k in Data table below.
2008-01-03: removing k = 51, 57 for n > 870000

n-history

Sieve history

Reservation history

Primes table

The data file can be found here.

k-value Nash Candidates n-range # primes prime(s) for n (C=confirmed)

51 1550 475000-870000 3 657705, 832630 C, 845494 C
57 2672 400000-870000 4 450430, 565994, 707245, 839446 C
117 3581 438000-1000000 5 511361, 560848, 697458, 834916, 877874
129 2753 398000-1000000 4 398288 C, 536615, 603488, 690893
135 2322 300000-1000000 6 437544, 474178, 525544, 876997, 959059, 961897
213 2538 260000-1000000 3 303670, 709727, 760942
237 2404 260000-1000000 3 421862, 729654, 832053
249 1592 260000-1000000 0
261 2394 260000-1000000 5 618918, 660709, 802123, 827599, 850383
267 2205 300000-1000000 5 415916, 471230, 607688, 662524, 705028
273 3029 260000-1000000 3 522287, 742930, 930663
279 2345 260000-1000000 6 277455, 318317, 455704, 479437, 587881, 616044
285 3331 470000-1000000 3 780300, 881240, 915913
291 1969 260000-1000000 11 291705, 313433, 372342, 386430, 389225, 531347, 565917, 810347, 832410, 934097, 996371

Notes

Riesel Prime Search