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:





MnDetails
8447119
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
141235829691133.7old
24205388436891341.12013-11-01 11:45:22
1758568149831242629932167.32022-02-04 11:44:54
ECM
DigitsB1Curves
255000082 / 280
Estimated T-Level: 21.5 ⓘ
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2018-10-28rucio1F8A64E702AA18AA2395033253
Factored
PRP without proof (not generated)
2020-06-02Luigi Morelli1F8A64E702AA18AA2255589653
Verified
Certified Good
2022-02-10riccardo uberti1F8A64E702AA18AA3759402553
History
DateUserTypeResult
2022-02-28riccardo ubertiNF-PP1Start=6/5, B1=3000000, B2=60000000
2022-02-23riccardo ubertiNF-PP1Start=2/7, B1=3000000, B2=60000000
2022-02-11riccardo ubertiNF-PM1B1=3000000, B2=60000000
2022-02-10supexplorluxuryCERT
Proof certified good
2022-02-10riccardo ubertiC-PRPM8447119/14123582969/2420538843689/175856814983124262993 : 1F8A64E702AA18AA
Proof Certified Good

Proof Power: 8

2022-02-04TJAOIFFactor: 175856814983124262993
2020-06-02Luigi MorelliC-PRPM8447119/14123582969/2420538843689 : 1F8A64E702AA18AA
2018-10-28rucioC-PRPM8447119/14123582969/2420538843689 : 1F8A64E702AA18AA
2013-11-01TJAOIFFactor: 2420538843689