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

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MnStatusDetails
2848927Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
2147920022391237.6old
9153644546609970988960012479.62023-02-01 15:41:20
ECM
DigitsB1Curves
255000058 / 280
Estimated T-Level: 21.0 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-22Oliver KruseD81F2A085EA4932B1239744453
Verified (Factored)2017-12-07kkmrkkblmbrbkD81F2A085EA4932B1208135953
Verified2023-02-01LordJuliusD81F2A085EA4932B2110984153
P-1 factors
DateFactorB1B2
2023-02-01915364454660997098896001360000296091180
History
DateUserTypeResult
2023-02-02JmaartvhesyCERT
PRP Certification
Proof certified good
2023-02-01LordJuliusC-PRP
M2848927/214792002239/915364454660997098896001 : D81F2A085EA4932B
PRP proof power = 7
PRP: Verified
Proof certified good
2023-02-01USAFSSF-PM1
Factor: 915364454660997098896001 / (P-1, B1=360000, B2=296091180)
2023-01-29Lisander ViaeneNF-PM1
B1=72000, B2=281496600
2017-12-07kkmrkkblmbrbkC-PRP
M2848927/214792002239 : D81F2A085EA4932B
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-22Oliver KruseC-PRP
M2848927/214792002239 : D81F2A085EA4932B
PRP: Verified (Factored)
PRP without proof (not generated)