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
42385801TF
No factors below 274
TF target 272
P-1
B1 = 380000
B2 = 1900000
LL
StatusDateUserResidueShift
Verified2008-11-16ahmerali929A2288C4F83B509138270
Verified2017-12-18Richard_Otter929A2288C4F83B5032172858
History
DateUserTypeResult
2020-01-10-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-06-Anonymous-NF
no factor from 2^72 to 2^73
2017-12-18Richard_OtterC-LL
929A2288C4F83B50
2015-11-09AirSquirrelsNF
no factor from 2^71 to 2^72
2015-03-04NickOfTimeNF
no factor from 2^70 to 2^71
2015-02-07chalsallNF
no factor from 2^69 to 2^70
2008-11-16ahmeraliC-LL
929A2288C4F83B50