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
9707861
Composite: 3 known prime factors
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
291235831928.1old
732943505511136.12008-09-08 05:34:58
266919402991579712999292374.52026-04-01 16:45:12
P-1 factors
DateFactorsB1B2
2026-04-0126691940299157971299929
12600001282335600
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2019-10-16mnd92D7F7A3D22D783722788396153
Factored
Certified Good
2020-12-24storm55102D7F7A3D22D783722140545553
History
DateUserTypeResult
2026-04-01yuriy_5-1F-PM1Factor: 26691940299157971299929 / B1=1260000, B2=1282335600
2020-12-24Theo PolidanoCERT
Proof certified good
2020-12-24storm5510C-PRPM9707861/291235831/73294350551 : 2D7F7A3D22D78372
Proof Certified Good

Proof Power: 8

2019-10-16mnd9C-PRPM9707861/291235831/73294350551 : 2D7F7A3D22D78372
2008-09-08Will EdgingtonFFactor: 73294350551