RPS Megabit Drive 3

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Purpose

The goal of this drive is to search for primes of the form k•2ⁿ-1 for k ≤ 300 and n > 1400000.

Started

• 2014-05-30

Ended

• 2022-03-09

k-values

2014-05-30: k = 203, 205, 219, 227, 235, 257, 259

2014-06-03: adding k = 275, 295

All for drive: k = 203, 205, 219, 227, 235, 257, 259, 275, 295

Data table

All k's searched for 1400000 ≤ n ≤ 2222000.

k-value	Nash	Candidates	prime(s) for n
203	1687	23371
205	1351	19486	1537779, 1666435
219	1069	14363	2178673
227	2550	34112
235	1563	21706	1718787, 1824515, 2163273
257	1867	26086	1658254, 2108554
259	1561	21162	1695723
275	1581	22195	1846390
295	1266	16545	1832129

External Links

• Thread at MersenneForum

Riesel Prime Search

Miscellaneous

Main

Current work

Megabit Drive‎ 1

Completed

Drive 1 Drive 2 Drive 3 Drive 4 Drive 5 Drive 6 Drive 7 Drive 8 Drive 9 Drive 10 Drive 11 Drive 12 Megabit Drive‎ 2 Megabit Drive‎ 3

Individual k-searches

k=5 k=15 k=17

Others