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

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MnStatusDetails
244381Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
7331431722.8old
39039020955576754227112271.72014-08-15 10:43:33
5443218676587901460182521772788.82020-04-28 15:59:31
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000207 / 1566
Estimated T-Level: 30.7
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse42452899B6A8B9862013
Verified (Factored)2017-10-12Oliver Kruse42452899B6A8B986215470313
Verified (Factored)2017-11-06kkmrkkblmbrbk42452899B6A8B986211326713
Verified (Factored)2020-04-17Oliver KruseAE44AF7F9C91ABC722210753
Verified2020-04-29atrenchAE44AF7F9C91ABC7315816953
Verified2020-05-01Chang Chia-TcheAE44AF7F9C91ABC7315402753
History
DateUserTypeResult
2022-04-11Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-07-25Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-05-01Chang Chia-TcheC-PRP
M244381/7331431/3903902095557675422711/544321867658790146018252177 : AE44AF7F9C91ABC7
PRP: Verified
PRP without proof (small exponent)
2020-04-29atrenchC-PRP
M244381/7331431/3903902095557675422711/544321867658790146018252177 : AE44AF7F9C91ABC7
PRP: Verified
PRP without proof (small exponent)
2020-04-28_p95holder_F-ECM
Factor: 544321867658790146018252177 / (ECM curve 3, B1=250000, B2=25000000)
2020-04-17Oliver KruseC-PRP
M244381/7331431/3903902095557675422711 : AE44AF7F9C91ABC7
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M244381/7331431/3903902095557675422711 : 42452899B6A8B986
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M244381/7331431/3903902095557675422711 : 42452899B6A8B986
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M244381/7331431/3903902095557675422711 : 42452899B6A8B986
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M244381/7331431/3903902095557675422711 : 42452899B6A8B986
PRP without proof (not generated)
2014-08-15TJAOIF-ECM
Factor: 3903902095557675422711