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
12953Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
107232964871133.3old
4691191152656871548.72008-08-29 02:24:31
17977902080178711650.72008-08-29 02:24:32
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001389 / 9201
Estimated T-Level: 40.8
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse0E208965B1D504883013
Verified2017-10-02kkmrkkblmbrbk0E208965B1D504883013
Verified2017-12-07ATH0E208965B1D504883865213
Verified2020-04-17Oliver KruseCF5599E104424E5D31224853
Verified2024-07-01kkmrkkblmbrbkCF5599E104424E5D39753
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M12953/10723296487/1797790208017871/469119115265687 : CF5599E104424E5D
PRP: Verified
PRP without proof (small exponent)
2023-10-10Anton RepkoNF-PM1
B1=100000000000, B2=122154521813133810
2023-05-16JacobZNF-PM1
B1=8500000000, B2=33523232658715800
2022-02-05JossNF-PM1
B1=1000000, B2=3910366209750
2020-04-17Oliver KruseC-PRP
M12953/10723296487/469119115265687/1797790208017871 : CF5599E104424E5D
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M12953/10723296487/469119115265687/1797790208017871 : 0E208965B1D50488
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M12953/10723296487/469119115265687/1797790208017871 : 0E208965B1D50488
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M12953/10723296487/469119115265687/1797790208017871 : 0E208965B1D50488
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M12953/10723296487/469119115265687/1797790208017871 : 0E208965B1D50488
PRP without proof (not generated)
2008-08-29-Anonymous-F
Factor: 1797790208017871
2008-08-29-Anonymous-F
Factor: 469119115265687