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
2273549Factored
FactorDigitsBitsDate
56941555575075911652.3old
869623305367319049372066.22018-01-26 17:18:22
ECM
DigitsB1Curves
255000080 / 280
Estimated T-Level: 21.4
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-11Oliver Kruse1EA3D216FB064CCA1013
Verified (Factored)2017-11-21kkmrkkblmbrbk1EA3D216FB064CCA1146474613
Verified2018-01-27trebor3E659C14A84D5DDA2116766853
Verified2018-01-29Oliver Kruse3E659C14A84D5DDA249589153
History
DateUserTypeResult
2018-01-29Oliver KruseC-PRP
M2273549/5694155557507591/86962330536731904937 : 3E659C14A84D5DDA
PRP: Verified
PRP without proof (not generated)
2018-01-27treborC-PRP
M2273549/5694155557507591/86962330536731904937 : 3E659C14A84D5DDA
PRP: Verified
PRP without proof (not generated)
2018-01-26ATHF-ECM
Factor: 86962330536731904937 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-21kkmrkkblmbrbkC-PRP
M2273549/5694155557507591 : 1EA3D216FB064CCA
PRP: Verified
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2273549/5694155557507591 : 1EA3D216FB064CCA
PRP: Verified
PRP without proof (not generated)
2016-04-30alpertronNF-PM1
B1=500000, B2=15000000, E=12