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
14431
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
3287930394766404721044472478.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001428 / 9201
Estimated T-Level: 40.8 ⓘ
TF below 2^130 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 Kruse4486EBB949FCF4C41013
Verified
No proof (small exponent)
2017-10-12kkmrkkblmbrbk4486EBB949FCF4C41149413
Verified
No proof (small exponent)
2020-04-17Oliver Kruse17E7A1534BEC1B7E1561153
Verified
No proof (small exponent)
2024-07-01kkmrkkblmbrbk17E7A1534BEC1B7E11121653
History
DateUserTypeResult
2025-02-13masserNF-PP1Start=183/67, B1=355000000, B2=354645000000
2025-02-07masserNF-PP1Start=2/7, B1=355000000, B2=354645000000
2025-01-18masserNF-PP1Start=6/5, B1=355000000, B2=354645000000
2024-07-01kkmrkkblmbrbkC-PRPM14431/328793039476640472104447 : 17E7A1534BEC1B7E
2023-11-30-anonymous-NF-PM1B1=100000000000, B2=122815096988293710
2022-02-18Ethan O'ConnorNF-PM1B1=2000000000, B2=31357239542188560
2022-01-24Ethan O'ConnorNF-PM1B1=2000000000, B2=2140593180
2020-04-17Oliver KruseC-PRPM14431/328793039476640472104447 : 17E7A1534BEC1B7E
2017-10-12kkmrkkblmbrbkC-PRPM14431/328793039476640472104447 : 4486EBB949FCF4C4
2017-09-21Oliver KruseC-PRPM14431/328793039476640472104447 : 4486EBB949FCF4C4
2017-09-21Oliver KruseC-PRPM14431/328793039476640472104447 : 4486EBB949FCF4C4
2011-04-14Oscar ÖstlinF-PM1Factor: 328793039476640472104447
2010-07-20James HintzF-PM1Factor: 328793039476640472104447