Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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Exponent Range:










MnStatusDetails
74974441Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 274
P-1
B1 = 772000
B2 = 159221580
LL
StatusDateUserResidueShift
Unverified2017-04-03curtiscCEC044E6A207C3__39697471
PRP
StatusDateUserResidueShiftTypeBase
Verified2025-01-10Greg2D55CC850E8F0A2F013
History
DateUserTypeResult
2025-01-10XyzzyCERT
PRP Certification
CERT proof power = 9
Proof certified good
2025-01-10GregC-PRP
2D55CC850E8F0A2F
PRP proof power = 9
PRP: Verified
Proof certified good
2022-10-09Oliver KruseNF-PM1
B1=772000, B2=159221580
2017-04-03curtiscC-LL
CEC044E6A207C3__
2016-04-02Mark RoseNF
no factor from 2^61 to 2^64
2015-03-11NickOfTimeNF
no factor from 2^74 to 2^75
2015-03-11NickOfTimeNF
no factor from 2^73 to 2^74
2014-11-18-Anonymous-NF-PM1
B1=935000
2013-12-22processinfoNF
no factor from 2^72 to 2^73
2013-12-22processinfoNF
no factor from 2^71 to 2^72
2013-12-22processinfoNF
no factor from 2^70 to 2^71
2013-06-08SMoffatNF
no factor from 2^69 to 2^70
2010-08-05-Anonymous-NF
no factor from 2^68 to 2^69
2010-07-27Bold_SeekerNF
no factor from 2^67 to 2^68
2010-07-26bigaldeprNF
no factor from 2^66 to 2^67
2010-07-19-Anonymous-NF
no factor from 2^65 to 2^66
2010-07-16SAHS Science DeptNF
no factor from 2^64 to 2^65