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
8623Factored
FactorDigitsBitsDate
80504329826.3old
5519427258471239.0old
2189296144322994619953239013432202568799141134.02021-03-29 18:19:28
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000006959 / 16550
Estimated T-Level: 47.1 ⓘ
TF below 2^151 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse512E96B77F6D0B1E2013
Verified (Factored)2017-10-12kkmrkkblmbrbk512E96B77F6D0B1E2619113
Verified (Factored)2020-04-17Oliver KruseAE1D1EDB5DAE0D6C2632453
Verified2021-03-30mnd9AE1D1EDB5DAE0D6C3281653
Verified2021-04-02TaikelennAE1D1EDB5DAE0D6C3802853
History
DateUserTypeResult
2023-08-14JacobZNF-PM1
B1=68000000000, B2=265422648792401100
2021-12-16Lisander ViaeneNF-PM1
B1=100000000
2021-04-02TaikelennC-PRP
M8623/80504329/551942725847/21892961443229946199532390134322025687991 : AE1D1EDB5DAE0D6C
PRP: Verified
PRP without proof (small exponent)
2021-03-30mnd9C-PRP
M8623/80504329/551942725847/21892961443229946199532390134322025687991 : AE1D1EDB5DAE0D6C
PRP: Verified
PRP without proof (small exponent)
2021-03-29Bruno VictalF-ECM
Factor: 21892961443229946199532390134322025687991 / (ECM curve 133, B1=11000000, B2=30114149530, sigma=5441154307057067)
2020-04-17Oliver KruseC-PRP
M8623/80504329/551942725847 : AE1D1EDB5DAE0D6C
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M8623/80504329/551942725847 : 512E96B77F6D0B1E
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M8623/80504329/551942725847 : 512E96B77F6D0B1E
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M8623/80504329/551942725847 : 512E96B77F6D0B1E
PRP without proof (not generated)