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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Exponent Range:










MnStatusDetails
2163361Factored
FactorDigitsBitsDate
566800583929.1old
1443524260871237.12008-07-14 20:21:27
169322068549671443.92008-09-30 14:36:35
195501331002440094609292374.02022-01-30 16:50:24
ECM
DigitsB1Curves
2550000104 / 280
Estimated T-Level: 21.9
TF below 2^68 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-09Oliver Kruse71299028165F95AB3013
Verified (Factored)2017-11-19kkmrkkblmbrbk71299028165F95AB373103213
Verified2022-01-30SRJ2877F234206BC33A7B9E4133528853
History
DateUserTypeResult
2022-01-31CavalicoCERT
PRP Certification
Proof certified good
2022-01-30SRJ2877C-PRP
M2163361/566800583/144352426087/16932206854967/19550133100244009460929 : F234206BC33A7B9E
PRP proof power = 7
PRP: Verified
Proof certified good
2022-01-30_p95holder_F-ECM
Factor: 19550133100244009460929 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-19kkmrkkblmbrbkC-PRP
M2163361/566800583/144352426087/16932206854967 : 71299028165F95AB
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-09Oliver KruseC-PRP
M2163361/566800583/144352426087/16932206854967 : 71299028165F95AB
PRP: Verified (Factored)
PRP without proof (not generated)
2016-04-03alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-09-30markrF
Factor: 16932206854967
2008-07-14George WoltmanF-ECM
Factor: 144352426087