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
2026-03-31Jacques MOLNEECM2026-04-032026-07-16
2026-03-11-anonymous-ECM2026-03-112026-08-29
2026-03-11-anonymous-ECM2026-03-112026-08-29
2026-03-03Jacques MOLNEECMC11S284.52 %2026-04-032026-05-25
2025-11-18mhoneyECMC5S163.60 %2026-04-032026-04-14
2025-11-18mhoneyECMC4S124.92 %2026-04-032026-05-16
2025-11-18mhoneyECMC4S123.80 %2026-04-032026-04-19
Factored
FactorDigitsBitsDate
1514137033113611547.11963
2312926942514380811857.71985-02-21
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000272 / 1566
Estimated T-Level: 30.9
TF below 2^98 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