Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
49732817Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 273
P-1
B1 = 550000
B2 = 13750000
LL
StatusDateUserResidueShift
Verified2011-06-21curtisc5B1DE9DD9CE75F6A46404890
Verified2019-09-13WolframBetz5B1DE9DD9CE75F6A27743093
History
DateUserTypeResult
2024-08-15tbusbyNF
no factor from 2^69 to 2^70
2019-09-13WolframBetzC-LL
5B1DE9DD9CE75F6A
2018-01-02monstNF
no factor from 2^72 to 2^73
2016-09-03Bruno VictalNF-PM1
B1=550000, B2=13750000, E=12
2016-02-23Mark RoseNF
no factor from 2^1 to 2^63
2015-11-01AirSquirrelsNF
no factor from 2^71 to 2^72
2015-11-01AirSquirrelsNF
no factor from 2^70 to 2^71
2015-07-13Architects CubedNF
no factor from 2^69 to 2^70
2011-06-21curtiscC-LL
5B1DE9DD9CE75F6A
2010-02-12JamesNF-PM1
B1=780000