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

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MnStatusDetails
523937Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
13989117911030.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000218 / 640
Estimated T-Level: 26.7
TF below 2^84 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver Kruse6B54D58029A45E1D1013
Verified2017-09-28Oliver Kruse6B54D58029A45E1D1013
Verified2017-11-07kkmrkkblmbrbk6B54D58029A45E1D138747013
Verified2020-04-19Oliver Kruse66C93E427E7E7C69126981053
Verified2024-12-14kkmrkkblmbrbk66C93E427E7E7C69117739153
History
DateUserTypeResult
2024-12-14PoaoCERT
PRP Certification
Proof certified good
2024-12-14kkmrkkblmbrbkC-PRP
M523937/1398911791 : 66C93E427E7E7C69
PRP proof power = 6
PRP: Verified
Proof certified good
2021-06-07happy5214NF-PP1
Start=2/7, B1=5000000, B2=365000000
2021-06-07happy5214NF-PM1
B1=10000000, B2=830000000
2020-04-19Oliver KruseC-PRP
M523937/1398911791 : 66C93E427E7E7C69
PRP: Verified
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M523937/1398911791 : 6B54D58029A45E1D
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M523937/1398911791 : 6B54D58029A45E1D
PRP: Verified
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M523937/1398911791 : 6B54D58029A45E1D
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=1500000, B2=50000000, E=12