The 2nd RPS-Drive

This page is a Summary of the 2nd Team Drive from Riesel Prime Search.

The goal of this drive was to search for primes of the form k·2n-1 for 20 k's < 300.

Basic information:

StatusThe drive is over!
Started2006-03-18
Ended2006-08-13
Range n210k < n < 600k
Contributors sieveL.Soule, D.Metcalfe, A.de Pereyra, P.Minovic
Sieve depthp = 2.536 T (2.536·1012)
Contributors LLR
(new primes found)		D.Metcalfe(14), J.C.Brunson, C.Vonck(1), E.Rajh(1), C.Chatfield, T.Galvan, J.Schlesser,
(Joshua2), P.Minovic(14), L.Soule(19), A.de Pereyra(5), I.Goudt, T.Ritschel(2), M.Curtis
Candidates for LLR278337 (714 per 1k on average)
Primes found61 (56 new, 5 confirmed)
LinkRPS-Forum

Data table:

kNash
weight		# candidates# primesprime for n
1071447130534267916*, 306334, 471382, 494896
1151954178062267443, 357829
131106598470-
1331442129734238163*, 312359, 359915, 471455
1432243193202303284, 374626
145109897103290861, 464887, 530181
149102289602212460*, 592968
1672263192764225232, 275680, 314000, 315872
1691594156751458099
1751792159426244073, 244393, 282719, 309593, 387513, 529417
17977968323236856, 490800, 507816
18129402624311212647, 268299, 293551, 308759, 327407, 334579, 400849, 458303, 491487, 553989, 563997
1852161189026211876, 229850, 238230, 294662, 391322, 459352
187115898763263093, 379649, 483153
22141839240-
2272550222872299306, 345918
2292195187773220147*, 560259, 586795
2331241117340-
2351563140914231927*, 312345, 315773, 556077
23938831091356300
* = confirmed primes

Detailed range overview:

To be done.