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
12613
Composite: 2 known prime factors
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
4628733759778776606458774524776126420738125.12009-03-05 15:09:12
36515673626869983084591896309036705573363342138.12026-01-13 20:19:07
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001836 / 9201
Estimated T-Level: 41.0 ⓘ
TF below 2^131 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredUnknown241D0Unknown,(aka U)
FactoredGeorge Woltman5710DEAFAD70241D0Woltman,Prime95,first web release,(aka W4)
FactoredBrian J. Beesley5710DEAFAD70241D0Mac,John Sweeney,v1.4,(aka J3)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver Kruse91CADDACAD2421FD1013
Factored
No proof (small exponent)
2017-10-12kkmrkkblmbrbk91CADDACAD2421FD1746413
Factored
No proof (small exponent)
2020-04-17Oliver KruseBE6940541DE089141444453
Factored
No proof (small exponent)
2024-07-01kkmrkkblmbrbkBE6940541DE08914132753
History
DateUserTypeResult
2026-01-13Ryan PropperF-ECMFactor: 365156736268699830845918963090367055733633
2025-03-12masserNF-PP1Start=177/59, B1=430000000, B2=429570000000
2025-02-21masserNF-PP1Start=6/5, B1=430000000, B2=429570000000
2025-01-18masserNF-PP1Start=2/7, B1=430000000, B2=429570000000
2024-07-01kkmrkkblmbrbkC-PRPM12613/46287337597787766064587745247761264207 : BE6940541DE08914
2023-05-13Anton RepkoNF-PM1B1=100000000000, B2=120417199046794650
2020-04-17Oliver KruseC-PRPM12613/46287337597787766064587745247761264207 : BE6940541DE08914
2017-10-12kkmrkkblmbrbkC-PRPM12613/46287337597787766064587745247761264207 : 91CADDACAD2421FD
2017-09-21Oliver KruseC-PRPM12613/46287337597787766064587745247761264207 : 91CADDACAD2421FD
2017-09-21Oliver KruseC-PRPM12613/46287337597787766064587745247761264207 : 91CADDACAD2421FD
2009-03-05-anonymous-F-ECMFactor: 46287337597787766064587745247761264207
2003-09-29-anonymous-NF-PM1B1=16777216, B2=1677721600, E=12
2003-09-29-anonymous-NF-PM1B1=8388608, B2=838860800, E=12
2003-07-06-anonymous-NF-PM1B1=4194304, B2=419430400, E=12
2003-05-19-anonymous-NF-PM1B1=2097152, B2=209715200, E=12
2003-04-27-anonymous-NF-PM1B1=1048576, B2=104857600, E=48
2003-04-03-anonymous-NF-PM1B1=524288, B2=52428800, E=48
2003-03-27-anonymous-NF-PM1B1=262144, B2=26214400, E=30
2003-02-02-anonymous-NF-PM1B1=131072, B2=13107200, E=30
2002-08-17-anonymous-NFno factor TF: 1-57
2002-07-14-anonymous-NF-PM1B1=65536, B2=6553600, E=12
2002-06-09-anonymous-NF-PM1B1=32768, B2=3276800
2002-04-28-anonymous-NF-PM1B1=16384, B2=1638400
2001-09-22-anonymous-NF-PM1B1=43000000, B2=4290000000
2001-07-17Alex KruppaNF-PM1B1=1000000, B2=100000000
2001-04-29-anonymous-NF-PM1B1=100000, B2=10000000
2000-09-08-anonymous-NFno factor TF: 1-56
2000-07-17-anonymous-NFno factor TF: 1-55
2000-01-19-anonymous-NFno factor TF: 53-54
1999-09-14-anonymous-NFno factor TF: 52-53