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:










MnStatusDetails
2791Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
587036086128519074704972375.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000024991 / 40830
Estimated T-Level: 53.1
TF below 2^171 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseEE77005C6067EA6B1013
Verified2017-10-12kkmrkkblmbrbkEE77005C6067EA6B176413
Verified2020-04-17Oliver KruseF1035ADB3CCCDADF1111153
Verified2024-02-03Wentao HuangF1035ADB3CCCDADF188953
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M2791/58703608612851907470497 : F1035ADB3CCCDADF
PRP: Verified
PRP without proof (small exponent)
2022-02-22mikrNF-PM1
B1=60000000000, B2=314806422904433460
2021-07-06ViliamFNF-PM1
B1=1000000000, B2=191000000000
2020-04-17Oliver KruseC-PRP
M2791/58703608612851907470497 : F1035ADB3CCCDADF
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M2791/58703608612851907470497 : EE77005C6067EA6B
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2791/58703608612851907470497 : EE77005C6067EA6B
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2791/58703608612851907470497 : EE77005C6067EA6B
PRP without proof (not generated)