Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
160375847Composite: proven not-prime with PRP test
TF
No factors below 279
TF target 278
P-1
B1 = 5000000
B2 = 150000000
PRP
StatusDateUserResidueShiftTypeBase
Verified2022-12-04Roland ClarksonF21C69A38D67C16A12797105113
History
DateUserTypeResult
2022-12-05curtiscCERT
PRP Certification
CERT proof power = 8
Proof certified good
2022-12-04Roland ClarksonC-PRP
F21C69A38D67C16A
PRP proof power = 8
PRP: Verified
Proof certified good
2021-02-20Roland ClarksonNF-PM1
B1=5000000, B2=150000000
2021-02-19Roland ClarksonNF
no factor from 2^78 to 2^79
2021-02-19Roland ClarksonNF
no factor from 2^77 to 2^78
2021-02-19Roland ClarksonNF
no factor from 2^76 to 2^77
2017-12-06Oliver KruseNF
no factor from 2^70 to 2^76
2017-03-29La GüiraNF
no factor from 2^69 to 2^70
2017-03-29La GüiraNF
no factor from 2^68 to 2^69
2016-03-04XZTNF
no factor from 2^67 to 2^68
2015-05-03tscNF
no factor from 2^66 to 2^67
2013-03-01GrunwalderGIMPNF
no factor from 2^65 to 2^66
2011-02-02runeskNF
no factor from 2^64 to 2^65
2010-06-29Torchwood InstituteNF
no factor from 2^63 to 2^64