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
73220929Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 630000
B2 = 12600000
LL
StatusDateUserResidueShift
Verified2015-12-30ALAN_BROWNF4BA8C5DD564FDAE7511836
Verified2024-08-10TarcisoF4BA8C5DD564FDAE59837803
History
DateUserTypeResult
2024-08-10TarcisoC-LL
F4BA8C5DD564FDAE
2015-12-30ALAN_BROWNC-LL
F4BA8C5DD564FDAE
2015-08-18arnaudNF-PM1
B1=630000, B2=12600000, E=12
2015-08-08NickOfTimeNF
no factor from 2^74 to 2^75
2015-08-08NickOfTimeNF
no factor from 2^73 to 2^74
2015-08-08NickOfTimeNF
no factor from 2^72 to 2^73
2015-03-31LaurVNF
no factor from 2^71 to 2^72
2013-04-20SMoffatNF
no factor from 2^70 to 2^71
2012-10-07KoekieNF
no factor from 2^69 to 2^70
2010-06-23TDH-DXLNF
no factor from 2^68 to 2^69
2010-06-18chargerNF
no factor from 2^67 to 2^68
2010-06-12jomateixNF
no factor from 2^66 to 2^67
2010-06-08Geoff WingNF
no factor from 2^65 to 2^66
2010-05-31cdokolasNF
no factor from 2^64 to 2^65
2008-06-28George WoltmanNF
no factor to 2^64