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

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MnStatusDetails
890011Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
83084969912394791652.9old
296354557668133438910390050012994.62024-03-09 17:15:02
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 KruseE1A852B1A2CC76521013
Verified (Factored)2017-10-14Oliver KruseE1A852B1A2CC7652140464413
Verified (Factored)2017-12-19ATHE1A852B1A2CC7652161224713
Verified (Factored)2020-04-23Oliver KruseA38ECA90667C6DC3111509253
Verified2024-03-09Anton TsvetkovA38ECA90667C6DC3246342553
P-1 factors
DateFactorB1B2
2024-03-092963545576681334389103900500180000008000000
History
DateUserTypeResult
2024-03-09David HruskaCERT
PRP Certification
Proof certified good
2024-03-09Anton TsvetkovC-PRP
M890011/8308496991239479/29635455766813343891039005001 : A38ECA90667C6DC3
PRP proof power = 6
PRP: Verified
Proof certified good
2024-03-09Anton TsvetkovNF-PM1
B1=8000000, B2=10020002850
2024-03-09Anton TsvetkovF-PM1
Factor: 29635455766813343891039005001 / (P-1, B1=8000000)
2020-04-23Oliver KruseC-PRP
M890011/8308496991239479 : A38ECA90667C6DC3
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-12-19ATHC-PRP
M890011/8308496991239479 : E1A852B1A2CC7652
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-14Oliver KruseC-PRP
M890011/8308496991239479 : E1A852B1A2CC7652
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M890011/8308496991239479 : E1A852B1A2CC7652
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12