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
40553243TF
No factors below 275
TF target 272
P-1
B1 = 455000
B2 = 10692500
LL
StatusDateUserResidueShift
Verified2009-04-28Guido Lorenzini66E51437AA4712053914869
Verified2017-03-24Sergey Nosov66E51437AA47120510512583
History
DateUserTypeResult
2020-09-19Sid & AndyNF
no factor from 2^74 to 2^75
2020-01-17-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-05-Anonymous-NF
no factor from 2^72 to 2^73
2017-03-24Sergey NosovC-LL
66E51437AA471205
2015-05-03Gordon SpenceNF
no factor from 2^71 to 2^72
2014-12-27NickOfTimeNF
no factor from 2^70 to 2^71
2014-12-27NickOfTimeNF
no factor from 2^69 to 2^70
2009-04-28Guido LorenziniC-LL
66E51437AA471205
2009-04-09Guido LorenziniNF-PM1
B1=455000, B2=10692500