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
44690141Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 272
P-1
B1 = 800000
B2 = 15500000
LL
StatusDateUserResidueShift
Verified2010-01-21curtisc5FED2ABBF5B10C2835142958
Verified2017-12-04Evgeniy Zavialov5FED2ABBF5B10C2827400375
History
DateUserTypeResult
2024-06-20James HeinrichNF
no factor from 2^69 to 2^70
2020-11-30Sid & AndyNF
no factor from 2^74 to 2^75
2019-12-21-Anonymous-NF
no factor from 2^73 to 2^74
2018-08-02-Anonymous-NF
no factor from 2^72 to 2^73
2018-07-06ixfd64NF-PM1
B1=800000, B2=15500000, E=6
2017-12-04Evgeniy ZavialovC-LL
5FED2ABBF5B10C28
2015-10-16-Anonymous-NF
no factor from 2^71 to 2^72
2015-09-26XZTNF
no factor from 2^70 to 2^71
2015-07-23Carsten KossendeyNF
no factor from 2^69 to 2^70
2014-06-29VictordeHollanderNF
no factor from 2^68 to 2^69
2010-01-21curtiscC-LL
5FED2ABBF5B10C28
2008-12-26-Anonymous-NF-PM1
B1=755000