Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnDetails
2507047
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
112315705611133.4old
ECM
DigitsB1Curves
2550000123 / 280
Estimated T-Level: 22.2
TF below 2^69 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-14Oliver Kruse25AEF23CF1EF4AE1148271553
Verified
PRP without proof (not generated)
2017-11-30storm551025AEF23CF1EF4AE11147793153
History
DateUserTypeResult
2022-08-20USAFSSNF-PM1B1=240000, B2=199861200
2017-11-30storm5510C-PRP
M2507047/11231570561 : 25AEF23CF1EF4AE1
2017-10-14Oliver KruseC-PRP
M2507047/11231570561 : 25AEF23CF1EF4AE1