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
9377
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
1018607919424731546.5old
4456142427269591548.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000007045 / 16550
Estimated T-Level: 47.1
TF below 2^152 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 Kruse8D2E1BFC35B0843B2013
Verified
No proof (small exponent)
2017-10-12kkmrkkblmbrbk8D2E1BFC35B0843B2133413
Verified
No proof (small exponent)
2020-04-17Oliver KruseE903B3AD61183FE92627853
Verified
No proof (small exponent)
2024-07-01kkmrkkblmbrbkE903B3AD61183FE92281253
History
DateUserTypeResult
2025-04-05masserNF-PP1Start=96/67, B1=1000000000, B2=999000000000
2024-07-01kkmrkkblmbrbkC-PRPM9377/101860791942473/445614242726959 : E903B3AD61183FE9
2023-07-04JacobZNF-PM1B1=62000000000, B2=254047854677867250
2021-12-16ANONYMOUSNF-PM1B1=100000000
2020-04-17Oliver KruseC-PRPM9377/101860791942473/445614242726959 : E903B3AD61183FE9
2017-10-12kkmrkkblmbrbkC-PRPM9377/101860791942473/445614242726959 : 8D2E1BFC35B0843B
2017-09-21Oliver KruseC-PRPM9377/101860791942473/445614242726959 : 8D2E1BFC35B0843B
2017-09-21Oliver KruseC-PRPM9377/101860791942473/445614242726959 : 8D2E1BFC35B0843B