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
49723747Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 273
P-1
B1 = 600000
B2 = 19950000
LL
StatusDateUserResidueShift
Verified2010-04-06zulian35EC53348F1142A112312707
Verified2019-12-23Syntony35EC53348F1142A15776065
History
DateUserTypeResult
2024-08-15tbusbyNF
no factor from 2^69 to 2^70
2019-12-23SyntonyC-LL
35EC53348F1142A1
2017-12-30monstNF
no factor from 2^72 to 2^73
2016-02-23Mark RoseNF
no factor from 2^1 to 2^63
2015-11-25dragonbud20NF
no factor from 2^71 to 2^72
2015-11-02LaurVNF
no factor from 2^70 to 2^71
2015-07-13Architects CubedNF
no factor from 2^69 to 2^70
2010-04-06zulianC-LL
35EC53348F1142A1
2009-03-02jfarekNF
no factor from 2^68 to 2^69
2009-02-25jfarekNF
no factor from 2^67 to 2^68
2009-02-23helicomNF-PM1
B1=600000, B2=19950000
2009-02-15korvaNF
no factor from 2^66 to 2^67
2009-02-11korvaNF
no factor from 2^65 to 2^66
2009-02-09korvaNF
no factor from 2^64 to 2^65
2009-02-07korvaNF
no factor from 2^63 to 2^64