Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
8779
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
573364215531135.7old
375970944452442471755.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000008240 / 16550
Estimated T-Level: 47.5
TF below 2^153 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
No proof (small exponent)
2017-09-21Oliver Kruse77AAE280A2821CAC2013
Verified
No proof (small exponent)
2017-10-12kkmrkkblmbrbk77AAE280A2821CAC2158613
Verified
No proof (small exponent)
2020-04-17Oliver Kruse174DA6EA6AAFC7422190453
Verified
No proof (small exponent)
2024-07-01kkmrkkblmbrbk174DA6EA6AAFC7422803253
History
DateUserTypeResult
2025-04-30masserNF-PP1Start=154/59, B1=1000000000, B2=999000000000
2024-07-01kkmrkkblmbrbkC-PRPM8779/37597094445244247/57336421553 : 174DA6EA6AAFC742
2023-08-07JacobZNF-PM1B1=66000000000, B2=254680416808818000
2021-12-16ANONYMOUSNF-PM1B1=100000000
2020-04-17Oliver KruseC-PRPM8779/57336421553/37597094445244247 : 174DA6EA6AAFC742
2017-10-12kkmrkkblmbrbkC-PRPM8779/57336421553/37597094445244247 : 77AAE280A2821CAC
2017-09-21Oliver KruseC-PRPM8779/57336421553/37597094445244247 : 77AAE280A2821CAC
2017-09-21Oliver KruseC-PRPM8779/57336421553/37597094445244247 : 77AAE280A2821CAC