Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
26571793Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
178979523597181027366590057971331100.52021-12-04 08:44:50
LL
StatusDateUserResidueShift
Verified (Factored)2005-04-26Alison Moreton450C39B8393932B39794074
Verified (Factored)2012-10-07Sid & Andy450C39B8393932B313859879
P-1 factors
DateFactorB1B2
2021-12-041789795235971810273665900579713300000090000000
History
DateUserTypeResult
2021-12-04LuminescenceF-PM1
Factor: 1789795235971810273665900579713 / (P-1, B1=3000000, B2=90000000)
2021-10-17TheJudgerNF
no factor from 2^74 to 2^75
2021-09-26TheJudgerNF
no factor from 2^73 to 2^74
2021-08-25TheJudgerNF
no factor from 2^72 to 2^73
2021-08-25TheJudgerNF
no factor from 2^71 to 2^72
2021-05-05mikrNF
no factor from 2^70 to 2^71
2017-04-17ramgeisNF
no factor from 2^69 to 2^70
2012-10-07Sid & AndyC-LL
450C39B8393932B3
2011-12-28bcp19NF
no factor from 2^68 to 2^69
2011-10-25ChuckNF
no factor from 2^67 to 2^68