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
72991973Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 274
P-1
B1 = 1095000
B2 = 32028750
LL
StatusDateUserResidueShift
Unverified2017-06-01baseyDFBC792C79B58A__21768899
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-07-01Jacques MOLNECF90370BA89854C05227309113
History
DateUserTypeResult
2024-07-04George WoltmanCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-07-01Jacques MOLNEC-PRP
CF90370BA89854C0
PRP proof power = 9
PRP: Verified
Proof certified good
2017-06-01baseyC-LL
DFBC792C79B58A__
2016-10-14SADMASTERNF
no factor from 2^65 to 2^66
2016-05-18BdotNF
no factor from 2^74 to 2^75
2014-07-30owftheevilNF-PM1
B1=1095000, B2=32028750, e=6
2014-07-18ChuckNF
no factor from 2^73 to 2^74
2014-07-18ChuckNF
no factor from 2^72 to 2^73
2014-07-17ChuckNF
no factor from 2^71 to 2^72
2013-07-08SMoffatNF
no factor from 2^70 to 2^71
2011-03-11Tom DuellNF
no factor to 2^70
2011-03-06-Anonymous-NF
no factor from 2^67 to 2^68
2011-03-03Zet_korNF
no factor from 2^66 to 2^67
2010-10-28SADMASTERNF
no factor from 2^65 to 2^66
2010-06-08SAHS Math DeptNF
no factor from 2^64 to 2^65
2008-09-19Wojciech FlorekNF
no factor to 2^64