The 4th RPS-Drive

This page is a Summary of the 4th Team Drive from Riesel Prime Search.

The goal of this drive was to search for primes of the form k·2n-1 for 21 k's < 300.

Basic information:

StatusThe drive is over!
Started2006-07-28
Ended2006-12-16
Range nvarious < n < 600k (see table below)
Contributors sieveL.Soule, A.de Pereyra, P.Minovic
Sieve depthp = 3.0 T = 3.0·1012
Contributors LLR
(primes found)		D.Metcalfe(6), M.Lehmann, J.C.Brunson(1), C.Vonck, H.Aggarwal, T.Galvan, J.Schlesser(1),
P.Minovic(12), L.Soule(5), A.de Pereyra, T.Ritschel(10), M.Curtis
Candidates for LLR222033 (? per 1k on average)
Primes found35 new
LinkRPS-Forum

Data table:

knash
weight		min_n# candidates# primesprime for n
91 2374300k161653313849, 535819, 563469
109594 350k35790-
2031687260k130963313474, 455190, 480918
2051351250k113012420297, 462261
2111039260k77161262877
2152245250k175031331784
217806 260k60093327829, 377581, 398605
2411600260k122183336197, 407709, 497679
2451419260k113460-
2571867320k120571541402
2591561260k119296278567, 316403, 347159, 423467, 425257, 427623
2631215260k90990-
2652008260k150661323083
2711510260k115954274509, 322971, 342349, 470529
2751581260k122041398928
281937 260k73170-
283597 260k43860-
2871307260k100051525378
2931483260k109202421330, 517242
2951266260k90062374035, 389903
2991199260k95161295640

Detailed range overview:

To be done.