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
73285243Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 630000
B2 = 12600000
LL
StatusDateUserResidueShift
Verified2015-12-21Alexander Tsupko904D9F67377E120D46796763
Verified2024-11-18MathEnthousiast904D9F67377E120D73266924
History
DateUserTypeResult
2024-11-18MathEnthousiastC-LL
904D9F67377E120D
2015-12-21Alexander TsupkoC-LL
904D9F67377E120D
2015-09-13TheJudgerNF-PM1
B1=630000, B2=12600000, E=12
2015-09-11dh1NF
no factor from 2^74 to 2^75
2015-09-11dh1NF
no factor from 2^73 to 2^74
2015-09-10BdotNF
no factor from 2^72 to 2^73
2015-04-05RichD0NF
no factor from 2^71 to 2^72
2013-04-21GrunwalderGIMPNF
no factor from 2^70 to 2^71
2011-04-22-Anonymous-NF
no factor to 2^70
2011-04-16Carsten KossendeyNF
no factor from 2^67 to 2^68
2011-04-16Carsten KossendeyNF
no factor from 2^66 to 2^67
2010-10-03ManuelJCNF
no factor from 2^65 to 2^66
2010-10-01UgmNF
no factor from 2^64 to 2^65
2008-06-28George WoltmanNF
no factor to 2^64