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

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MnStatusDetails
2895979Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
31797849431031.6old
26584812449512491651.22014-06-20 11:46:33
2120324006367004007595292477.52018-05-25 19:10:06
ECM
DigitsB1Curves
2550000101 / 280
Estimated T-Level: 21.8
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-23Oliver Kruse394F5000C0AF81D12217946253
Verified (Factored)2017-12-08kkmrkkblmbrbk394F5000C0AF81D12171434753
Verified2018-05-28ANONYMOUS394F5000C0AF81D13234607153
Verified2018-05-30Oliver Kruse394F5000C0AF81D13249523553
History
DateUserTypeResult
2022-12-03USAFSSNF-PM1
B1=320000, B2=243437040
2018-05-30Oliver KruseC-PRP
M2895979/3179784943/2658481244951249/212032400636700400759529 : 394F5000C0AF81D1
PRP: Verified
PRP without proof (not generated)
2018-05-28ANONYMOUSC-PRP
M2895979/3179784943/2658481244951249/212032400636700400759529 : 394F5000C0AF81D1
PRP: Verified
PRP without proof (not generated)
2018-05-25alpertronF-ECM
Factor: 212032400636700400759529 / (ECM curve 1, B1=50000, B2=5000000)
2017-12-08kkmrkkblmbrbkC-PRP
M2895979/3179784943/2658481244951249 : 394F5000C0AF81D1
PRP: Verified
PRP without proof (not generated)
2017-10-23Oliver KruseC-PRP
M2895979/3179784943/2658481244951249 : 394F5000C0AF81D1
PRP: Verified
PRP without proof (not generated)
2014-06-20TJAOIF
Factor: 2658481244951249