Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
1283Factored4824675346114250541198242904214396192319
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2020-08-12_p95holder_12AFB9E5948AEB7F157653
Verified (Factored)2020-04-17Oliver Kruse12AFB9E5948AEB7F152753
Verified (Factored)2017-10-02kkmrkkblmbrbk2AC6FA81B13AFA6C1013
Verified (Factored)2017-09-26George Woltman2AC6FA81B13AFA6C139513
Verified (Factored)2017-09-25csaba2AC6FA81B13AFA6C1013
History
DateUserTypeResult
2021-06-01ZacHFXNF-PP1Start=2/7, B1=10000000, B2=1010000000
2021-03-27nordiNF-PM1B1=1000000000000, B2=2232843418649129478
2020-11-30Oliver KruseNF-PM1B1=2500000000000, B2=400000000000000, E=12
2020-08-12_p95holder_C-PRPM1283/4824675346114250541198242904214396192319 : 12AFB9E5948AEB7F
2020-04-17Oliver KruseC-PRPM1283/4824675346114250541198242904214396192319 : 12AFB9E5948AEB7F
2018-12-12Jocelyn LaroucheNF-PM1B1=62000000000, B2=1400000000000, E=12
2018-12-11Jocelyn LaroucheNF-PM1B1=62000000000, B2=620000000000, E=12
2018-12-11Jocelyn LaroucheNF-PM1B1=62000000000, B2=400000000000, E=12
2018-12-11Jocelyn LaroucheNF-PM1B1=62000000000, B2=200000000000, E=12
2018-12-11Jocelyn LaroucheNF-PM1B1=62000000000, B2=102000000000, E=12
2018-12-09Jocelyn LaroucheNF-PM1B1=30000000000
2018-12-09Jocelyn LaroucheNF-PM1B1=20000000000
2018-12-08Jocelyn LaroucheNF-PM1B1=10000000000
2017-10-02kkmrkkblmbrbkC-PRPM1283/4824675346114250541198242904214396192319 : 2AC6FA81B13AFA6C
2017-09-26George WoltmanC-PRPM1283/4824675346114250541198242904214396192319 : 2AC6FA81B13AFA6C
2017-09-25csabaC-PRPM1283/known_factors : 2AC6FA81B13AFA6C
2017-04-21nordiNF-PM1B1=7974098357, B2=637927868521, E=12
2017-03-09ZacHFXF-ECMFactor: 4824675346114250541198242904214396192319 / (ECM curve 403, B1=110000000, B2=11000000000)
2017-03-09ZacHFXNF-PM1B1=1000000, B2=100000000, E=12
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 to 2^56
2000-01-19-Anonymous-NFno factor from 2^54 to 2^55