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
51421973TF
No factors below 273
TF target 273
P-1
B1 = 610000
B2 = 17842500
LL
StatusDateUserResidueShift
Verified2011-01-28Thomas Fehr70E1C9AEA4EB317422491386
Verified2019-03-13frolyar70E1C9AEA4EB317415327827
History
DateUserTypeResult
2019-03-13frolyarC-LL
70E1C9AEA4EB3174
2016-02-23Mark RoseNF
no factor from 2^60 to 2^63
2016-01-02AirSquirrelsNF
no factor from 2^72 to 2^73
2015-12-08dragonbud20NF
no factor from 2^71 to 2^72
2015-07-22Mark RoseNF
no factor from 2^70 to 2^71
2015-01-07monstNF
no factor from 2^69 to 2^70
2011-01-28Thomas FehrC-LL
70E1C9AEA4EB3174
2009-12-16-Anonymous-NF
no factor from 2^68 to 2^69
2009-12-05oodairaNF-PM1
B1=610000, B2=17842500
2009-04-17steinrarNF
no factor from 2^67 to 2^68
2008-11-30Sturle SundeNF
no factor from 2^66 to 2^67
2008-11-29Sturle SundeNF
no factor from 2^65 to 2^66
2008-11-28Sturle SundeNF
no factor from 2^64 to 2^65
2008-11-27ANONYMOUSNF
no factor from 2^63 to 2^64