Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
3111137Factored
FactorDigitsBitsDate
1787590267008681360232167.32009-04-24 03:38:44
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)goudyC8FD56DC15781CC50
Verified (Factored)1999-05-30Jason DiltzC8FD56DC15781CC52110386
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-29Oliver KruseE4EF28FE909D7F9A1134622253
Verified2017-12-15alan145E4EF28FE909D7F9A1114822053
History
DateUserTypeResult
2022-03-17LordJuliusNF
no factor from 2^66 to 2^67
2022-03-17LordJuliusNF
no factor from 2^65 to 2^66
2022-02-09JossNF-PM1
B1=1000000, B2=119912100
2022-01-19JossF
Factor: 178759026700868136023 / TF: 67-68
2021-01-12JossNF
no factor from 2^64 to 2^65
2021-01-07JossNF
no factor from 2^63 to 2^64
2021-01-05JossNF
no factor from 2^62 to 2^63
2021-01-04JossNF
no factor from 2^61 to 2^62
2020-12-27JossNF-PM1
B1=311113, B2=3111137, E=6
2017-12-15alan145C-PRP
M3111137/178759026700868136023 : E4EF28FE909D7F9A
PRP: Verified
PRP without proof (not generated)
2017-10-29Oliver KruseC-PRP
M3111137/178759026700868136023 : E4EF28FE909D7F9A
PRP: Verified
PRP without proof (not generated)
2009-04-24SmurgsF-ECM
Factor: 178759026700868136023
2009-04-14S485122NF
no factor from 2^60 to 2^61