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
49889239TF
No factors below 275
TF target 273
P-1
B1 = 600000
B2 = 19800000
LL
StatusDateUserResidueShift
Verified2012-02-16Helmut ZulusB95D2A049080A613964175
Verified2019-11-10frolyarB95D2A049080A61343606919
History
DateUserTypeResult
2019-12-06Sid & AndyNF
no factor from 2^74 to 2^75
2019-11-10frolyarC-LL
B95D2A049080A613
2019-07-06-Anonymous-NF
no factor from 2^73 to 2^74
2018-01-15Mark RoseNF
no factor from 2^72 to 2^73
2016-02-23Mark RoseNF
no factor from 2^51 to 2^63
2012-02-16Helmut ZulusC-LL
B95D2A049080A613
2012-01-03ChuckNF
no factor from 2^71 to 2^72
2012-01-03ChuckNF
no factor from 2^70 to 2^71
2011-12-06BdotNF
no factor from 2^69 to 2^70
2009-01-12Son JohanNF
no factor from 2^68 to 2^69
2009-01-11Son JohanNF
no factor from 2^67 to 2^68
2009-01-09Martti JärviNF-PM1
B1=600000, B2=19800000
2008-12-30Roman MaznichenkoNF
no factor from 2^66 to 2^67
2008-12-29Roman MaznichenkoNF
no factor from 2^65 to 2^66
2008-12-28dtlgcNF
no factor from 2^64 to 2^65
2008-12-27Sturle SundeNF
no factor from 2^63 to 2^64