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
55250353TF
No factors below 274
TF target 273
P-1
B1 = 640000
B2 = 16000000
LL
StatusDateUserResidueShift
Bad2012-06-26-Anonymous-88F2C5A2E4E6BB9725859138
Verified2013-10-18Timothy Devlin85898B7D2500968238466934
Verified2016-09-21AirSquirrels85898B7D250096825575162
History
DateUserTypeResult
2021-11-21LordJuliusNF
no factor from 2^73 to 2^74
2016-09-21AirSquirrelsC-LL
85898B7D25009682
2015-07-29Mark RoseNF
no factor from 2^72 to 2^73
2013-10-18Timothy DevlinC-LL
85898B7D25009682
2012-06-26-Anonymous-C-LL
88F2C5A2E4E6BB97
2012-02-21GregNF
no factor from 2^71 to 2^72
2012-02-10Kevin JagetNF
no factor from 2^70 to 2^71
2012-01-29Jerry HallettNF
no factor from 2^69 to 2^70
2011-11-09S485122NF-PM1
B1=640000, B2=16000000
2011-06-15XyzzyNF
no factor from 2^68 to 2^69
2009-11-29Per JessenNF
no factor from 2^67 to 2^68
2009-11-24Per JessenNF
no factor from 2^66 to 2^67
2009-11-19Per JessenNF
no factor from 2^65 to 2^66
2009-03-13Howard ChungNF
no factor from 2^64 to 2^65
2008-10-14-Anonymous-NF
no factor to 2^64