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
44615861Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 272
P-1
B1 = 1500000
B2 = 30000000
LL
StatusDateUserResidueShift
Verified2009-02-03curtisc72EF2C236B773D5938873752
Verified2018-07-01rudimeier72EF2C236B773D5931982907
History
DateUserTypeResult
2020-11-02Sid & AndyNF
no factor from 2^74 to 2^75
2020-09-14Sid & AndyNF-PM1
B1=1500000, B2=30000000, E=12
2019-12-31-Anonymous-NF
no factor from 2^73 to 2^74
2018-07-01rudimeierC-LL
72EF2C236B773D59
2018-03-09LingUaanNF
no factor from 2^72 to 2^73
2015-10-02-Anonymous-NF
no factor from 2^71 to 2^72
2015-10-02-Anonymous-NF
no factor from 2^70 to 2^71
2015-08-07LaurVNF
no factor from 2^69 to 2^70
2014-06-26chalsallNF
no factor from 2^68 to 2^69
2009-02-03curtiscC-LL
72EF2C236B773D59
2008-12-30curtiscNF-PM1
B1=755000