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
73118737Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 277
TF target 274
P-1
B1 = 610000
B2 = 11895000
LL
StatusDateUserResidueShift
Verified2014-09-17-Anonymous-AA7F3CD916D7700A35211427
Verified2023-09-26MirraAA7F3CD916D7700A22894617
History
DateUserTypeResult
2023-09-26MirraC-LL
AA7F3CD916D7700A
2020-10-16-Anonymous-NF
no factor from 2^76 to 2^77
2020-10-09-Anonymous-NF
no factor from 2^75 to 2^76
2017-01-26James HeinrichNF-PM1
B1=610000, B2=11895000, E=12
2014-09-17-Anonymous-C-LL
AA7F3CD916D7700A
2014-09-03-Anonymous-NF-PM1
B1=715000
2014-08-29Matthias WurtingerNF
no factor from 2^74 to 2^75
2014-08-29Matthias WurtingerNF
no factor from 2^73 to 2^74
2014-08-20jondi_hanlucNF
no factor from 2^72 to 2^73
2014-08-20jondi_hanlucNF
no factor from 2^71 to 2^72
2013-07-09ITSNF
no factor from 2^70 to 2^71
2012-10-22rickNF
no factor from 2^69 to 2^70
2010-06-11Jason DeanNF
no factor from 2^68 to 2^69
2010-06-09sannerud.comNF
no factor from 2^67 to 2^68
2010-06-09andrea.biancalanaNF
no factor from 2^66 to 2^67
2010-06-03Per JessenNF
no factor from 2^65 to 2^66
2010-05-29-Anonymous-NF
no factor from 2^64 to 2^65
2008-06-28George WoltmanNF
no factor to 2^64