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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Exponent Range:










MnStatusDetails
55277483TF
No factors below 274
TF target 273
P-1
B1 = 550000
B2 = 11825000
LL
StatusDateUserResidueShift
Bad2013-09-23xor37h6C7BA0607227C94047190892
Verified2013-11-01Amazon EC209A4EB8115703C6B17582375
Verified2015-10-24MadPoo09A4EB8115703C6B2244608
History
DateUserTypeResult
2021-11-22LordJuliusNF
no factor from 2^73 to 2^74
2015-10-24MadPooC-LL
09A4EB8115703C6B
2015-07-29Mark RoseNF
no factor from 2^72 to 2^73
2013-11-01Amazon EC2C-LL
09A4EB8115703C6B
2013-09-23xor37hC-LL
6C7BA0607227C940
2012-07-29Jerry HallettNF-PM1
B1=550000, B2=11825000, E=12
2012-06-25XyzzyNF
no factor from 2^71 to 2^72
2011-06-03shaugeNF
no factor from 2^70 to 2^71
2011-06-03shaugeNF
no factor from 2^69 to 2^70
2009-04-10RMAC9.5NF
no factor to 2^69
2009-04-09Sturle SundeNF
no factor from 2^64 to 2^65
2008-10-21-Anonymous-NF
no factor to 2^64