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

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MnStatusDetails
1090597Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
189763879927.5old
662682486969671445.92008-08-26 19:52:55
10360386593212800589432269.82017-04-14 09:42:04
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
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-01Kriesel99D589E18E5E32AC013
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-05Oliver Kruse5E9CCD7031240ED43013
Verified2017-10-16Oliver Kruse5E9CCD7031240ED4350874513
Verified2018-01-03ATH5E9CCD7031240ED4333427713
History
DateUserTypeResult
2025-09-02Brian WuCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
99D589E18E5E32AC
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2024-10-05timc995NF-PM1
B1=2000000, B2=63130867800
2018-01-03ATHC-PRP
M1090597/189763879/66268248696967/1036038659321280058943 : 5E9CCD7031240ED4
PRP: Verified
PRP without proof (not generated)
2017-10-16Oliver KruseC-PRP
M1090597/189763879/66268248696967/1036038659321280058943 : 5E9CCD7031240ED4
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1090597/189763879/66268248696967/1036038659321280058943 : 5E9CCD7031240ED4
PRP: Verified
PRP without proof (not generated)
2017-09-29Oliver KruseC-PRP
M1090597/189763879/66268248696967/1036038659321280058943 : 5E9CCD7031240ED4
PRP without proof (not generated)
2017-04-14TJAOIF-ECM
Factor: 1036038659321280058943 / (ECM curve 71, B1=50000, B2=5000000)
2008-08-26-Anonymous-F
Factor: 66268248696967