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
1963639Factored
FactorDigitsBitsDate
24820396971031.2old
112926999671169056650572373.32021-07-18 02:17:43
ECM
DigitsB1Curves
2550000280 / 280
3025000056 / 640
Estimated T-Level: 25.4
TF below 2^80 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver KruseABCE5A9D61C1422D1013
Verified (Factored)2017-11-12kkmrkkblmbrbkABCE5A9D61C1422D1116103713
Verified2021-07-18/r/counting30FAFBEC82F4834F22625553
History
DateUserTypeResult
2023-10-14USAFSSNF-PM1
B1=576000, B2=490908600
2022-08-12USAFSSNF-PM1
B1=132000, B2=134381520
2021-07-18mister_philCERT
PRP Certification
Proof certified good
2021-07-18/r/countingC-PRP
M1963639/2482039697/11292699967116905665057 : 30FAFBEC82F4834F
PRP proof power = 7
PRP: Verified
Proof certified good
2021-07-18_p95holder_F-ECM
Factor: 11292699967116905665057 / (ECM curve 4, B1=50000, B2=5000000)
2017-11-12kkmrkkblmbrbkC-PRP
M1963639/2482039697 : ABCE5A9D61C1422D
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1963639/2482039697 : ABCE5A9D61C1422D
PRP: Verified (Factored)
PRP without proof (not generated)