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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

The data file can be found here. All k's searched for 1400000 ≤ n ≤ 2222000.

k-value Nash Candidates # primes prime(s) for n

203 1687 23371 0
205 1351 19486 2 1537779, 1666435
219 1069 14363 1 2178673
227 2550 34112 0
235 1563 21706 3 1718787, 1824515, 2163273
257 1867 26086 2 1658254, 2108554
259 1561 21162 1 1695723
275 1581 22195 1 1846390
295 1266 16545 1 1832129

Range history

External Links

Riesel Prime Search