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
62001551Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 274
P-1
B1 = 535000
B2 = 8961250
LL
StatusDateUserResidueShift
Verified2014-05-02curtisc2B2D63630BCF98B243031262
Verified2022-07-05rmmadden2B2D63630BCF98B25293844
History
DateUserTypeResult
2022-07-05rmmaddenC-LL
2B2D63630BCF98B2
2016-02-23Mark RoseNF
no factor from 2^59 to 2^63
2014-05-02curtiscC-LL
2B2D63630BCF98B2
2013-09-29krackerNF-PM1
B1=535000, B2=8961250
2013-09-10BdotNF
no factor from 2^73 to 2^74
2013-03-07Tom DuellNF
no factor from 2^72 to 2^73
2013-02-14SWL551NF
no factor from 2^71 to 2^72
2012-05-29rduerrNF
no factor from 2^70 to 2^71
2011-12-02-Anonymous-NF
no factor from 2^69 to 2^70
2009-10-25seekuaNF
no factor from 2^68 to 2^69
2009-10-19seekuaNF
no factor from 2^67 to 2^68
2009-10-11seekuaNF
no factor from 2^66 to 2^67
2009-02-13TDH-DXLNF
no factor from 2^65 to 2^66
2009-02-11tmorrowNF
no factor from 2^64 to 2^65
2008-12-11DerekNF
no factor from 2^63 to 2^64