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
1483
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 244
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2026-02-28masserECM2026-03-092026-03-19
2026-02-28masserECMC25S164.84 %2026-03-092026-03-13
Factored
FactorDigitsBitsDate
91018810100971597218507055469741100810872942139.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000064510 / 105362
Estimated T-Level: 58.1 ⓘ
TF below 2^188 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 Kruse8CE99F2E9CAA02FC1013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbk8CE99F2E9CAA02FC1013
Verified
No proof (small exponent)
2017-12-07ATH8CE99F2E9CAA02FC163413
Verified
No proof (small exponent)
2020-04-17Oliver KruseFE60930BB9E625D6184853
Verified
No proof (small exponent)
2020-08-12_p95holder_FE60930BB9E625D6113753
History
DateUserTypeResult
2021-07-21ViliamFNF-PP1Start=2/7, B1=1000000000, B2=221000000000
2021-03-27nordiNF-PM1B1=1000000000000, B2=2232843418649129478
2020-08-12_p95holder_C-PRP
M1483/910188101009715972185070554697411008108729 : FE60930BB9E625D6
2020-04-17Oliver KruseC-PRP
M1483/910188101009715972185070554697411008108729 : FE60930BB9E625D6
2017-12-07ATHC-PRP
M1483/910188101009715972185070554697411008108729 : 8CE99F2E9CAA02FC
2017-10-02kkmrkkblmbrbkC-PRPM1483/910188101009715972185070554697411008108729 : 8CE99F2E9CAA02FC
2017-09-21Oliver KruseC-PRPM1483/known_factors : 8CE99F2E9CAA02FC
2002-12-25-anonymous-NF-PM1B1=4290000000
2002-09-29Alex KruppaNFno factor TF: 1-57
2002-09-14-anonymous-NF-PM1B1=3221225472, B2=4290000000, E=48
2002-09-07Alex KruppaNFno factor TF: 1-57
2002-08-24Alex KruppaNFno factor TF: 1-57
2002-08-03-anonymous-NF-PM1B1=2147483648, B2=4290000000, E=48
2002-05-25-anonymous-NF-PM1B1=1073741824, B2=4290000000
2001-05-20-anonymous-NF-PM1B1=3000000000, B2=4290000000
2001-02-11-anonymous-NF-PM1B1=1000000, B2=100000000
2001-02-11-anonymous-NF-PM1B1=10000, B2=1000000
2000-07-12-anonymous-NFno factor TF: 1-56
2000-01-19-anonymous-NFno factor TF: 54-55
1999-12-08-anonymous-NFno factor TF: 53-54
1999-09-14-anonymous-NFno factor TF: 52-53
1999-09-14-anonymous-NFno factor TF: 50-51
1998-07-05-anonymous-NFno factor TF: 50-52