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
71728207TF
No factors below 275
TF target 274
P-1
B1 = 705000
B2 = 15510000
LL
StatusDateUserResidueShift
Verified2017-04-26Geimas5E30EAA41736F30FC61407703
Verified2017-07-24ShnobelE30EAA41736F30FC18972667
History
DateUserTypeResult
2017-07-24ShnobelC-LL
E30EAA41736F30FC
2017-04-26Geimas5C-LL
E30EAA41736F30FC
2016-08-23-Anonymous-NF
no factor from 2^74 to 2^75
2015-05-19James HeinrichNF
no factor from 2^73 to 2^74
2015-05-03TheJudgerNF-PM1
B1=705000, B2=15510000, E=12
2015-03-16gcardonaNF
no factor from 2^72 to 2^73
2015-02-09srow7NF
no factor from 2^71 to 2^72
2012-11-08ANONYMOUSNF
no factor from 2^70 to 2^71
2012-05-17NBNF
no factor from 2^69 to 2^70
2010-07-15HatchNF
no factor from 2^68 to 2^69
2010-07-13HatchNF
no factor from 2^67 to 2^68
2010-05-11unconnectedNF
no factor from 2^66 to 2^67
2010-05-09Geoff SelkirkNF
no factor from 2^65 to 2^66
2010-05-01Geoff SelkirkNF
no factor from 2^64 to 2^65
2008-09-29-Anonymous-NF
no factor to 2^64