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

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Exponent Range:










MnStatusDetails
7717Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
19446841824.2old
139689275511133.7old
577561733271135.7old
31714744275191341.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000006619 / 9201
Estimated T-Level: 43.6
TF below 2^140 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse483F97CB9C89F34F4013
Verified2017-10-02kkmrkkblmbrbk483F97CB9C89F34F4013
Verified2017-12-07ATH483F97CB9C89F34F4411613
Verified2020-04-17Oliver KruseE30BAD2EC3D85D284321453
Verified2024-02-03Wentao HuangE30BAD2EC3D85D284626653
History
DateUserTypeResult
2024-12-10yuriy5-1NF-PM1
B1=24000000000, B2=93848103835646160
2024-02-03Wentao HuangC-PRP
M7717/19446841/13968927551/57756173327/3171474427519 : E30BAD2EC3D85D28
PRP: Verified
PRP without proof (small exponent)
2021-07-08ViliamFNF-PM1
B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M7717/19446841/13968927551/57756173327/3171474427519 : E30BAD2EC3D85D28
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M7717/19446841/13968927551/57756173327/3171474427519 : 483F97CB9C89F34F
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M7717/19446841/13968927551/57756173327/3171474427519 : 483F97CB9C89F34F
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M7717/known_factors : 483F97CB9C89F34F
PRP without proof (not generated)