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
9203
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
132255048875931443.6old
1776281835172064675650732477.2old
161232573978032402726388012683.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000006153 / 16550
Estimated T-Level: 46.9 ⓘ
TF below 2^151 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 Kruse8136398D902019B13013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbk8136398D902019B13013
Verified
No proof (small exponent)
2017-12-07ATH8136398D902019B13838213
Verified
No proof (small exponent)
2020-04-17Oliver Kruse2D4371DB0FE351EB3445753
Verified
No proof (small exponent)
2024-07-01kkmrkkblmbrbk2D4371DB0FE351EB3716153
History
DateUserTypeResult
2025-04-11masserNF-PP1Start=186/59, B1=1000000000, B2=999000000000
2024-07-01kkmrkkblmbrbkC-PRPM9203/13225504887593/16123257397803240272638801/177628183517206467565073 : 2D4371DB0FE351EB
2023-07-11JacobZNF-PM1B1=63000000000, B2=255469764292442700
2021-12-16ANONYMOUSNF-PM1B1=100000000
2020-04-17Oliver KruseC-PRPM9203/13225504887593/177628183517206467565073/16123257397803240272638801 : 2D4371DB0FE351EB
2017-12-07ATHC-PRPM9203/13225504887593/177628183517206467565073/16123257397803240272638801 : 8136398D902019B1
2017-10-02kkmrkkblmbrbkC-PRPM9203/13225504887593/177628183517206467565073/16123257397803240272638801 : 8136398D902019B1
2017-09-21Oliver KruseC-PRPM9203/known_factors : 8136398D902019B1
2003-05-19-anonymous-F-PM1Factor: 177628183517206467565073
2003-05-19-anonymous-F-PM1Factor: 16123257397803240272638801
2003-05-19-anonymous-FFactor: 13225504887593