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RPS Megabit Drive 3

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  • Name: Riesel Prime Search 3rd Megabit Drive
  • Purpose: The goal of this drive is to search for primes of the form k•2n-1 for k=<300 and n>1400000.
  • Link: Mersenne Forum
  • Started: 2014-05-30
  • Ended: ongoing
  • k-values:
2014-05-30: k = 203, 205, 219, 227, 235, 257, 259
2014-06-03: adding k = 275, 295
currently k = 203, 205, 219, 227, 235, 257, 259, 275, 295
  • n-values:
n > 1400000

Data table

Found primes

203 [0]:
205 [2]: 1537779, 1666435
219 [1]: 2178673
227 [0]:
235 [3]: 1718787, 1824515, 2163273
257 [2]: 1658254, 2108554
259 [1]: 1695723
275 [1]: 1846390
295 [1]: 1832129

Multi Reservation

  • Here: The current nmax = 5,000,000 as of 2022-03-04.

Range history

Riesel Prime Search