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
56698843Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 273
P-1
B1 = 670000
B2 = 17085000
LL
StatusDateUserResidueShift
Verified2012-09-20-Anonymous-B8FBD8183F57BDF218545968
Verified2020-11-21SSB8FBD8183F57BDF241350265
History
DateUserTypeResult
2020-11-21SSC-LL
B8FBD8183F57BDF2
2020-05-24-Anonymous-NF
no factor from 2^75 to 2^76
2020-04-01Sid & AndyNF
no factor from 2^74 to 2^75
2018-12-15Sid & AndyNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^61 to 2^63
2015-12-30-Anonymous-NF
no factor from 2^72 to 2^73
2012-09-20-Anonymous-C-LL
B8FBD8183F57BDF2
2011-11-17megavinkNF
no factor from 2^71 to 2^72
2011-11-06megavinkNF
no factor from 2^70 to 2^71
2011-09-23NBNF
no factor from 2^69 to 2^70
2011-09-06Eric ChristensonNF-PM1
B1=670000, B2=17085000
2011-04-19eon_blue_apocalypseNF
no factor from 2^68 to 2^69
2009-05-24Net_ForceNF
no factor from 2^67 to 2^68
2008-08-10Team_InspectorNF
no factor from 2^66 to 2^67
2008-08-07Team_InspectorNF
no factor from 2^65 to 2^66
2008-08-05Sturle SundeNF
no factor from 2^64 to 2^65
2008-08-05Sturle SundeNF
no factor from 2^63 to 2^64