Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
12782851Factored
FactorDigitsBitsDate
920365273929.8old
2557592828091237.92008-09-08 08:39:08
162165295938242722572063.82017-05-17 11:07:03
3273645900227415957592168.12022-05-09 20:42:31
7276990373439192584272092479.32022-05-09 20:42:31
2587711528624138153469388072787.72022-05-09 20:42:31
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-05-10LordJuliusD999012AF306E9F63221779653
Verified2023-03-13Naegi MakotoD999012AF306E9F6681137053
P-1 factors
DateFactorB1B2
2022-05-0961645213700098762638579831947213762951673986053039553206940532463429217400000428459850
History
DateUserTypeResult
2023-03-13curtiscCERT
PRP Certification
Proof certified good
2023-03-13Naegi MakotoC-PRP
M12782851/920365273/255759282809/16216529593824272257/327364590022741595759/727699037343919258427209/258771152862413815346938807 : D999012AF306E9F6
PRP proof power = 8
PRP: Verified
Proof certified good
2023-01-14LordJuliusNF
no factor from 2^67 to 2^68
2022-05-10PuangCERT
PRP Certification
Proof certified good
2022-05-10LordJuliusC-PRP
M12782851/920365273/255759282809/16216529593824272257 : D999012AF306E9F6
PRP proof power = 8
PRP: Verified
Proof certified good
2022-05-09nordiF-PM1
Factor: 61645213700098762638579831947213762951673986053039553206940532463429217 / (P-1, B1=400000, B2=428459850)
2022-05-09nordiNF-PM1
B1=400000
2017-05-17TJAOIF
Factor: 16216529593824272257 / TF: 63-64
2008-09-08Will EdgingtonF
Factor: 255759282809