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
63084709Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 274
P-1
B1 = 555000
B2 = 10128750
LL
StatusDateUserResidueShift
Verified2013-11-21curtisc9EC78E116BE8E04F36208556
Verified2023-04-04Schnell Lab9EC78E116BE8E04F56049710
Verified2023-06-06garo9EC78E116BE8E04F50642986
History
DateUserTypeResult
2023-06-06garoC-LL
9EC78E116BE8E04F
2023-04-04Schnell LabC-LL
9EC78E116BE8E04F
2016-02-23Mark RoseNF
no factor from 2^59 to 2^63
2013-11-21curtiscC-LL
9EC78E116BE8E04F
2013-06-25HardyP GermanyNF-PM1
B1=555000, B2=10128750
2013-04-20megavinkNF
no factor from 2^73 to 2^74
2013-04-20megavinkNF
no factor from 2^72 to 2^73
2013-04-20megavinkNF
no factor from 2^71 to 2^72
2012-08-17-Anonymous-NF
no factor from 2^70 to 2^71
2011-12-23benthomasNF
no factor from 2^69 to 2^70
2009-11-08subgeniusNF
no factor from 2^68 to 2^69
2009-11-05subgeniusNF
no factor from 2^67 to 2^68
2009-09-03lycornNF
no factor from 2^66 to 2^67
2009-09-01DougalNF
no factor from 2^65 to 2^66
2009-02-24mathschrisNF
no factor from 2^64 to 2^65
2009-02-14Wojciech FlorekNF
no factor from 2^63 to 2^64