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

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MnStatusDetails
418109Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
849378926240529511435032376.2old
ECM
DigitsB1Curves
2550000280 / 280
30250000249 / 640
Estimated T-Level: 26.9
TF below 2^85 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-23Oliver KruseCA88F3A9776B8B001013
Verified2017-11-02kkmrkkblmbrbkCA88F3A9776B8B00138287613
Verified2020-04-18Oliver Kruse21FB0D75DA738B84118196553
Verified2024-10-26kkmrkkblmbrbk21FB0D75DA738B84117583753
History
DateUserTypeResult
2024-10-26johnguinCERT
PRP Certification
Proof certified good
2024-10-26kkmrkkblmbrbkC-PRP
M418109/84937892624052951143503 : 21FB0D75DA738B84
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-18Oliver KruseC-PRP
M418109/84937892624052951143503 : 21FB0D75DA738B84
PRP: Verified
PRP without proof (small exponent)
2017-11-02kkmrkkblmbrbkC-PRP
M418109/84937892624052951143503 : CA88F3A9776B8B00
PRP: Verified
PRP without proof (small exponent)
2017-09-23Oliver KruseC-PRP
M418109/84937892624052951143503 : CA88F3A9776B8B00
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=3000000, B2=100000000, E=12