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:





MnDetails
Fermat F27
Composite: 2 known prime factors
Trial Factored to 268
TF target 277
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2026-03-03Jacques MOLNEECMC2S249.66 %2026-03-092026-06-25
2025-11-18mhoneyECMC4S116.94 %2026-01-192026-02-21
2025-11-18mhoneyECMC2S299.30 %2026-01-192026-03-30
2025-11-18mhoneyECMC3S233.37 %2026-01-202026-02-08
2025-11-18mhoneyECM2026-01-202026-03-08
2025-11-18mhoneyECMC4S139.13 %2026-01-202026-02-03
Factored
FactorDigitsBitsDate
1514137033113611547.11963
2312926942514380811857.71985-02-21
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000257 / 1566
Estimated T-Level: 30.8
TF below 2^97 is very unlikely to find new factors due to ECM effort.
History
DateUserTypeResult
2025-01-10Anton RepkoNF-PM1B1=1000000000, B2=9000000423960
2021-10-24H MichaelsonNF-PP1Start=2/7, B1=1500000
2021-04-26ATHNF-PP1Start=6/5, B1=1000000, B2=50000000
2021-04-25ATHNF-PP1Start=2/7, B1=500000, B2=50000000