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
91496849Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 277
TF target 275
P-1
B1 = 745000
B2 = 17880000
LL
StatusDateUserResidueShift
Bad2019-12-20Jack The RipperE4E28702329328FA76476974
Verified2020-04-24backroadrider5B913366CC43192A19242521
Verified2021-04-12endless_mike5B913366CC43192A79627479
History
DateUserTypeResult
2021-04-12endless_mikeC-LL
5B913366CC43192A
2020-04-24backroadriderC-LL
5B913366CC43192A
2019-12-20Jack The RipperC-LL
E4E28702329328FA
2019-06-13ANONYMOUSNF-PM1
B1=650000, B2=8125000
2019-05-28penluNF-PM1
B1=745000, B2=17880000, e=12
2019-03-16TravisJankNF
no factor from 2^76 to 2^77
2018-12-25Strolling JellyfishNF
no factor from 2^75 to 2^76
2018-12-25Strolling JellyfishNF
no factor from 2^74 to 2^75
2018-06-03gcardonaNF
no factor from 2^73 to 2^74
2018-05-27RichD0NF
no factor from 2^72 to 2^73
2017-03-24monstNF
no factor from 2^71 to 2^72
2014-09-05shaugeNF
no factor from 2^70 to 2^71
2014-04-03hkskypNF
no factor from 2^69 to 2^70
2014-04-03hkskypNF
no factor from 2^68 to 2^69
2014-04-03hkskypNF
no factor from 2^67 to 2^68
2014-04-03rbanovNF
no factor from 2^66 to 2^67
2013-06-16David CampeauNF
no factor from 2^65 to 2^66
2011-01-03Architects CubedNF
no factor from 2^64 to 2^65