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
10853Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
65119516.0old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001316 / 9201
Estimated T-Level: 40.7
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 KruseD5A70C53401774E51013
Verified2017-10-12kkmrkkblmbrbkD5A70C53401774E51454613
Verified2020-04-17Oliver Kruse9D617FB9C2A3CDBD189653
Verified2024-07-01kkmrkkblmbrbk9D617FB9C2A3CDBD11009953
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M10853/65119 : 9D617FB9C2A3CDBD
PRP: Verified
PRP without proof (small exponent)
2022-12-29-Anonymous-NF-PM1
B1=100000000000, B2=122192573512709700
2020-04-17Oliver KruseC-PRP
M10853/65119 : 9D617FB9C2A3CDBD
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10853/65119 : D5A70C53401774E5
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10853/65119 : D5A70C53401774E5
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10853/65119 : D5A70C53401774E5
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2009-01-06Matthias WurtingerF-ECM
Factor: 65119