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
Fermat F27Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
1514137033113611547.11963
2312926942514380811857.71985-02-21
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000169 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-02-22i8087factor ECM small0.00 % 2025-02-22
2025-02-17DanBfactor ECM smallC4S287.63 % 2025-02-22
2025-02-16Jacques MOLNEfactor ECM smallC4S270.52 % 2025-02-22
2025-02-02Phyxickfactor ECM smallC2S225.45 % 2025-02-22
2025-01-27NStormfactor ECM smallC2S136.82 % 2025-02-21
History
DateUserTypeResult
2025-01-10Anton RepkoNF-PM1
B1=1000000000, B2=9000000423960
2021-10-24H MichaelsonNF-PP1
Start=2/7, B1=1500000
2021-04-26ATHNF-PP1
Start=6/5, B1=1000000, B2=50000000
2021-04-25ATHNF-PP1
Start=2/7, B1=500000, B2=50000000