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
38853967TF
No factors below 275
TF target 272
P-1
B1 = 205000
B2 = 3997500
LL
StatusDateUserResidueShift
Verified2007-09-13Wayne Reindollar4744809E22E6AFAD23585798
Verified2009-05-05Ilya S. Sapytsky4744809E22E6AFAD1689856
History
DateUserTypeResult
2021-02-19-Anonymous-NF
no factor from 2^74 to 2^75
2020-02-14-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-10LaurVNF
no factor from 2^72 to 2^73
2019-05-14monstNF
no factor from 2^71 to 2^72
2015-03-20NesowaNF
no factor from 2^70 to 2^71
2014-12-09monstNF
no factor from 2^69 to 2^70
2010-01-17Carsten KossendeyNF-PM1
B1=205000, B2=3997500, E=6
2009-05-05Ilya S. SapytskyC-LL
4744809E22E6AFAD