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

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MnStatusDetails
890159Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
359403965722423252872065.0old
28824607020240237204068345532891.22024-03-09 17:15:04
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-28Oliver Kruse55197060562B746B1013
Verified (Factored)2017-10-14Oliver Kruse55197060562B746B141103413
Verified (Factored)2017-12-19ATH55197060562B746B173811913
Verified (Factored)2020-04-22Oliver Kruse0927EE0973DA2676176529753
Verified2024-03-09Anton Tsvetkov0927EE0973DA2676262919453
P-1 factors
DateFactorB1B2
2024-03-092882460702024023720406834553800000010020002850
History
DateUserTypeResult
2024-03-09arnaudCERT
PRP Certification
Proof certified good
2024-03-09Anton TsvetkovC-PRP
M890159/35940396572242325287/2882460702024023720406834553 : 0927EE0973DA2676
PRP proof power = 6
PRP: Verified
Proof certified good
2024-03-09Anton TsvetkovF-PM1
Factor: 2882460702024023720406834553 / (P-1, B1=8000000, B2=10020002850)
2020-04-22Oliver KruseC-PRP
M890159/35940396572242325287 : 0927EE0973DA2676
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-12-19ATHC-PRP
M890159/35940396572242325287 : 55197060562B746B
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-14Oliver KruseC-PRP
M890159/35940396572242325287 : 55197060562B746B
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M890159/35940396572242325287 : 55197060562B746B
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12