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

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MnStatusDetails
7457Composite, with 5 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
19969847824.3old
77858835291032.9old
166949553111134.0old
2837716203842167664666960412787.9old
314767315503831331668898074029807282609032143141.22017-03-05 11:55:52
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000002050 / 9201
Estimated T-Level: 41.1
TF below 2^132 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseEF26CB3F2C4DBD9B5013
Verified2017-10-02kkmrkkblmbrbkEF26CB3F2C4DBD9B5013
Verified2017-12-07ATHEF26CB3F2C4DBD9B533713
Verified2020-04-17Oliver KruseF8B36CB8078F37BD5363353
Verified2024-02-03Wentao HuangF8B36CB8078F37BD5359253
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M7457/19969847/7785883529/16694955311/283771620384216766466696041/3147673155038313316688980740298072826090321 : F8B36CB8078F37BD
PRP: Verified
PRP without proof (small exponent)
2023-08-31-Anonymous-NF-PM1
B1=40000000000, B2=169617550478676300
2021-07-05ViliamFNF-PM1
B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M7457/19969847/7785883529/16694955311/283771620384216766466696041/3147673155038313316688980740298072826090321 : F8B36CB8078F37BD
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M7457/19969847/7785883529/16694955311/283771620384216766466696041/3147673155038313316688980740298072826090321 : EF26CB3F2C4DBD9B
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M7457/19969847/7785883529/16694955311/283771620384216766466696041/3147673155038313316688980740298072826090321 : EF26CB3F2C4DBD9B
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M7457/known_factors : EF26CB3F2C4DBD9B
PRP without proof (not generated)
2017-03-05kkmrkkblmbrbkF-ECM
Factor: 3147673155038313316688980740298072826090321 / (ECM curve 2898, B1=3000000, B2=300000000)