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
161220043Composite: proven not-prime with PRP test
TF
No factors below 276
TF target 278
P-1
B1 = 1396000
B2 = 1497819180
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-11-12cressi9983C23B2F733CA7859404113
History
DateUserTypeResult
2024-11-13XyzzyCERT
PRP Certification
CERT proof power = 8
Proof certified good
2024-11-12cressiC-PRP
9983C23B2F733CA7
PRP proof power = 8
PRP: Verified
Proof certified good
2024-10-06Luke DurantNF-PM1
B1=1396000, B2=1497819180
2024-08-29SRBaseNF
no factor from 2^75 to 2^76
2023-03-01SRBaseNF
no factor from 2^74 to 2^75
2021-11-24SRBaseNF
no factor from 2^73 to 2^74
2018-06-20Craig JohnsonNF
no factor from 2^72 to 2^73
2018-06-18chaciakNF
no factor from 2^71 to 2^72
2018-06-18eziocmNF
no factor from 2^70 to 2^71
2017-02-03La GüiraNF
no factor from 2^69 to 2^70
2017-02-03La GüiraNF
no factor from 2^68 to 2^69
2016-03-17XZTNF
no factor from 2^67 to 2^68
2015-05-12RichardNF
no factor from 2^66 to 2^67
2013-02-25Chih-Wei HuangNF
no factor from 2^65 to 2^66
2011-02-03dslNF
no factor from 2^64 to 2^65
2010-06-30Charles A. MorrisNF
no factor from 2^63 to 2^64