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
62075473Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 274
P-1
B1 = 595000
B2 = 12197500
LL
StatusDateUserResidueShift
Verified2014-02-16-Anonymous-71A0D9DBC7FDFC3713732476
Verified2022-07-25ANONYMOUS71A0D9DBC7FDFC3756548756
History
DateUserTypeResult
2022-07-25ANONYMOUSC-LL
71A0D9DBC7FDFC37
2016-02-23Mark RoseNF
no factor from 2^61 to 2^63
2014-02-16-Anonymous-C-LL
71A0D9DBC7FDFC37
2013-05-25gcardonaNF
no factor from 2^73 to 2^74
2013-05-20TheJudgerNF-PM1
B1=595000, B2=12197500, E=12
2013-03-01bcp19NF
no factor from 2^72 to 2^73
2013-02-13Jerry HallettNF
no factor from 2^71 to 2^72
2012-08-29sikafarmi_rendering_farmNF
no factor from 2^70 to 2^71
2011-11-28JaeckelNF
no factor from 2^69 to 2^70
2009-08-01Andrey KurgannikovNF
no factor from 2^68 to 2^69
2009-03-06PrimeCruncherNF
no factor from 2^67 to 2^68
2009-03-04GCapNF
no factor from 2^66 to 2^67
2009-02-16borgygNF
no factor from 2^65 to 2^66
2009-02-13Trace McVeraNF
no factor from 2^64 to 2^65
2008-12-24DerekNF
no factor from 2^63 to 2^64