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
2829479Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
5658959722.4old
25228623723500091651.22014-06-19 11:26:33
ECM
DigitsB1Curves
255000099 / 280
Estimated T-Level: 21.8
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-22Oliver Kruse82BEF467323B3A2B2239906653
Verified2017-12-06ATH82BEF467323B3A2B2106839953
History
DateUserTypeResult
2023-01-30USAFSSNF-PM1
B1=360000, B2=287380170
2017-12-06ATHC-PRP
M2829479/5658959/2522862372350009 : 82BEF467323B3A2B
PRP: Verified
PRP without proof (not generated)
2017-10-22Oliver KruseC-PRP
M2829479/5658959/2522862372350009 : 82BEF467323B3A2B
PRP: Verified
PRP without proof (not generated)
2014-06-19TJAOIF
Factor: 2522862372350009