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
1236701Factored
FactorDigitsBitsDate
328449879295313654332064.82007-11-07 00:43:49
ECM
DigitsB1Curves
2550000280 / 280
30250000104 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski14540
Verified (Factored)dave platt62DBE42A888B14540
Verified (Factored)2002-08-17S5748362DBE42A888B14541100287
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-29Oliver KruseD92A94A48D4A3A121013
Verified2017-10-20kkmrkkblmbrbkD92A94A48D4A3A12117692113
History
DateUserTypeResult
2022-04-13LordJuliusNF
no factor from 2^63 to 2^64
2022-04-13LordJuliusNF
no factor from 2^62 to 2^63
2022-04-13LordJuliusNF
no factor from 2^61 to 2^62
2022-04-13LordJuliusNF
no factor from 2^1 to 2^61
2017-10-20kkmrkkblmbrbkC-PRP
M1236701/32844987929531365433 : D92A94A48D4A3A12
PRP: Verified
PRP without proof (not generated)
2017-09-29Oliver KruseC-PRP
M1236701/32844987929531365433 : D92A94A48D4A3A12
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12
2007-11-07Chad DavisF-ECM
Factor: 32844987929531365433