Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
2345617Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
656772761929.3old
52625465502231342.32008-07-14 20:23:12
14489093180773767729832270.32025-03-12 19:58:37
ECM
DigitsB1Curves
2550000225 / 280
Estimated T-Level: 24.0
TF below 2^75 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-12Oliver KruseD4A7350411CBF98A2013
Verified (Factored)2017-11-24kkmrkkblmbrbkD4A7350411CBF98A2149677513
Verified2025-03-12ST2409317E4867E223D91386951953
History
DateUserTypeResult
2025-03-12Grassman666CERT
PRP Certification
Proof certified good
2025-03-12ST240C-PRP
M2345617/656772761/5262546550223/1448909318077376772983 : 9317E4867E223D91
PRP proof power = 7
PRP: Verified
Proof certified good
2025-03-12ST240F-ECM
Factor: 1448909318077376772983 / (ECM curve 2, B1=77812, B2=117709515, Edwards Sigma=7945077596705223)
2018-03-18alpertronNF-PM1
B1=500000, B2=15000000, E=12
2017-11-24kkmrkkblmbrbkC-PRP
M2345617/656772761/5262546550223 : D4A7350411CBF98A
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-12Oliver KruseC-PRP
M2345617/656772761/5262546550223 : D4A7350411CBF98A
PRP: Verified (Factored)
PRP without proof (not generated)
2008-07-14George WoltmanF-ECM
Factor: 5262546550223