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
5903
Composite, with 8 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
11807513.5old
15489473823.9old
42182839825.3old
238433977927.8old
695244478491136.0old
2426088202959431547.8old
1139336288352626590750542813433096.5old
162376758570300115580774876606331100.4old
P-1 factors
DateFactorsB1B2
2025-01-08No new factors discovered24000000000007202477788084198400
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
551100000007181 / 40830
Estimated T-Level: 50.9 ⓘ
TF below 2^164 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 KruseA32657F82A4E54AA8013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbkA32657F82A4E54AA8013
Verified
No proof (small exponent)
2017-12-07ATHA32657F82A4E54AA8214813
Verified
No proof (small exponent)
2020-04-17Oliver Kruse68C73D8571D6DB4C8132353
Factored
No proof (small exponent)
2022-05-12Jorge Coveiro68C73D8571D6DB4C1553553
Verified
No proof (small exponent)
2024-02-03Wentao Huang68C73D8571D6DB4C8180653
History
DateUserTypeResult
2025-05-24masserNF-PP1Start=131/41, B1=1500000000, B2=1498500000000
2025-01-08-anonymous-F-PM1Factor: 1623767585703001155807748766063 / B1=2400000000000, B2=7202477788084198620
2024-02-03Wentao HuangC-PRP
M5903/11807/15489473/42182839/238433977/69524447849/242608820295943/113933628835262659075054281343/1623767585703001155807748766063 : 68C73D8571D6DB4C
2023-07-24-anonymous-NF-PM1B1=42000000000, B2=171618195782983950
2022-05-12Jorge CoveiroC-PRP
M5903/11807 : 68C73D8571D6DB4C
2021-12-16ANONYMOUSNF-PM1B1=200000000
2021-07-06ViliamFNF-PM1B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M5903/11807/15489473/42182839/238433977/69524447849/242608820295943/113933628835262659075054281343/1623767585703001155807748766063 : 68C73D8571D6DB4C
2017-12-07ATHC-PRP
M5903/11807/15489473/42182839/238433977/69524447849/242608820295943/113933628835262659075054281343/1623767585703001155807748766063 : A32657F82A4E54AA
2017-10-02kkmrkkblmbrbkC-PRPM5903/11807/15489473/42182839/238433977/69524447849/242608820295943/113933628835262659075054281343/1623767585703001155807748766063 : A32657F82A4E54AA
2017-09-21Oliver KruseC-PRPM5903/known_factors : A32657F82A4E54AA