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
5628157TF
No factors below 272
TF target 266
P-1
B1 = 8000000
B2 = 6409598910
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
LL
StatusDateUserResidueShift
Verified1998-10-11Nels Pearson3D372D0BC8A294FB0
Verified2000-12-14Bob Farrington3D372D0BC8A294FB4574173
History
DateUserTypeResult
2024-01-19One ManNF
no factor from 2^71 to 2^72
2022-11-12Sid & AndyNF-PM1
B1=8000000, B2=6409598910
2020-12-16-Anonymous-NF
no factor from 2^70 to 2^71
2020-12-15-Anonymous-NF
no factor from 2^69 to 2^70
2020-07-17TJAOINF
no factor from 2^68 to 2^69
2019-10-25USAFSSNF-PM1
B1=340000, B2=10115000, E=12
2018-07-05ramgeisNF
no factor from 2^67 to 2^68
2016-06-18Gordon SpenceNF
no factor from 2^66 to 2^67
2015-10-15ramgeisNF
no factor from 2^65 to 2^66
2014-11-17monstNF
no factor from 2^64 to 2^65
2014-11-15NesowaNF
no factor from 2^63 to 2^64
2011-01-19USAFSSNF-PM1
B1=65000, B2=1023750, E=6
2009-04-15GrunwalderGIMPNF
no factor from 2^62 to 2^63