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

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MnStatusDetails
8037151Factored
FactorDigitsBitsDate
25578343044837794744903060230185262396139127.62022-11-27 17:40:25
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-08-31Matthew Beck10BC2FEB3500D2292932630
Verified (Factored)2002-07-14Derek Gordon10BC2FEB3500D2294184665
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-12-03jeriffee2C713F1E0AADE1841377367053
P-1 factors
DateFactorB1B2
2022-11-2725578343044837794744903060230185262396130000004532960250
History
DateUserTypeResult
2022-12-03xyuzyzCERT
PRP Certification
Proof certified good
2022-12-03jeriffeeC-PRP
M8037151/255783430448377947449030602301852623961 : 2C713F1E0AADE184
PRP proof power = 8
PRP: Verified
Proof certified good
2022-11-27linamentF-PM1
Factor: 255783430448377947449030602301852623961 / (P-1, B1=3000000, B2=4532960250)
2022-11-26linamentNF-PM1
B1=2999900
2021-03-14-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-14-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-14-Anonymous-NF
no factor from 2^69 to 2^70
2020-11-14Dylan DelgadoNF-PM1
B1=500000, B2=16000000, e=12
2020-02-07TJAOINF
no factor from 2^68 to 2^69
2017-09-11Sid & AndyNF
no factor from 2^67 to 2^68
2015-11-18snme2pm1NF
no factor from 2^66 to 2^67
2015-04-24snme2pm1NF
no factor from 2^65 to 2^66
2013-12-24David CampeauNF
no factor from 2^64 to 2^65
2013-08-25David CampeauNF
no factor from 2^63 to 2^64
2012-10-05NesowaNF-PM1
B1=100000, B2=1950000, E=6