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
27822667Factored
FactorDigitsBitsDate
31717840391031.6old
1092874359771236.72008-09-08 23:37:33
3247702636536231548.22008-10-01 01:55:10
734564008613732421592066.02019-08-20 11:19:25
20706207072070785865192270.82022-11-01 13:33:49
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
History
DateUserTypeResult
2024-02-03masserNF-PP1
Start=2/7, B1=50000, B2=5000000
2023-12-07masserNF
no factor from 2^71 to 2^72
2022-11-01masserF
Factor: 2070620707207078586519 / TF: 69-71
2022-08-10LordJuliusNF
no factor from 2^67 to 2^68
2022-08-10LordJuliusNF
no factor from 2^66 to 2^67
2022-08-05masserNF
no factor from 2^67 to 2^69
2022-05-21masserNF-PM1
B1=285000, B2=34496700
2019-08-20TJAOIF
Factor: 73456400861373242159 / TF: 65-66
2008-10-01markrF
Factor: 324770263653623
2008-09-08Will EdgingtonF
Factor: 109287435977