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
2358751Factored
FactorDigitsBitsDate
7995977189931239.5old
187273148504819547292064.02017-06-28 10:12:19
ECM
DigitsB1Curves
255000085 / 280
Estimated T-Level: 21.5
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-28alpertron899A080F9C9AC42D2013
Verified2017-11-01Oliver Kruse899A080F9C9AC42D2172346313
History
DateUserTypeResult
2018-04-27alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-01Oliver KruseC-PRP
M2358751/799597718993/18727314850481954729 : 899A080F9C9AC42D
PRP: Verified
PRP without proof (not generated)
2017-09-28alpertronC-PRP
M2358751/18727314850481954729/799597718993 : 899A080F9C9AC42D
PRP: Verified
PRP without proof (not generated)
2017-06-28TJAOIF
Factor: 18727314850481954729 / TF: 64-65