Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
23644867Factored
FactorDigitsBitsDate
1960740996463276427886271206846897730880941133.82021-12-24 01:33:13
LL
StatusDateUserResidueShift
Verified (Factored)2004-12-13Herley Kindle Jr.164E0DD44B9D902C18132404
Verified (Factored)2010-12-06garo164E0DD44B9D902C22984642
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-01-29Dobri00648B649AFB2AE911468691953
P-1 factors
DateFactorB1B2
2021-12-2419607409964632764278862712068468977308809164779049433709
History
DateUserTypeResult
2023-01-30Massimo Cappelli (ik5pwa)CERT
PRP Certification
Proof certified good
2023-01-29DobriC-PRP
M23644867/19607409964632764278862712068468977308809 : 00648B649AFB2AE9
PRP proof power = 8
PRP: Verified
Proof certified good
2021-12-24GdSF-PM1
Factor: 19607409964632764278862712068468977308809 / (P-1, B1=1647790, B2=49433709, e=12, n=1296K CUDAPm1 v0.22)
2021-09-16TheJudgerNF
no factor from 2^73 to 2^74
2021-09-06TheJudgerNF
no factor from 2^72 to 2^73
2021-09-06TheJudgerNF
no factor from 2^71 to 2^72
2021-08-05SRBaseNF
no factor from 2^70 to 2^71
2018-09-05ramgeisNF
no factor from 2^69 to 2^70
2018-01-12VictordeHollanderNF
no factor from 2^68 to 2^69
2016-06-29VictordeHollanderNF
no factor from 2^67 to 2^68
2010-12-06garoC-LL
164E0DD44B9D902C