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

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MnStatusDetails
10221973Factored
FactorDigitsBitsDate
981309409929.9old
179909578774861611754.02014-10-26 12:47:01
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-02-19AbsolutXTRCDCDA373ACF8900724912453
Verified2021-02-11Oliver KruseCDCDA373ACF89007231850553
History
DateUserTypeResult
2022-08-10LordJuliusNF
no factor from 2^67 to 2^68
2022-08-10LordJuliusNF
no factor from 2^66 to 2^67
2022-08-10LordJuliusNF
no factor from 2^65 to 2^66
2022-08-10LordJuliusNF
no factor from 2^64 to 2^65
2022-01-16ViliamFNF
no factor from 2^68 to 2^69
2022-01-16ViliamFNF
no factor from 2^67 to 2^68
2021-02-11curtiscCERT
PRP Certification
Proof certified good
2021-02-11Oliver KruseC-PRP
M10221973/981309409/17990957877486161 : CDCDA373ACF89007
PRP proof power = 8
PRP: Verified
Proof certified good
2020-02-19AbsolutXTRC-PRP
M10221973/981309409/17990957877486161 : CDCDA373ACF89007
PRP: Verified
PRP without proof (not generated)
2014-10-26TJAOIF
Factor: 17990957877486161 / TF: 53-54