is 2 6940513 - 1
has 2089303 decimal digits
takes 1.513 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.281265.6716%----4.281265.6716%
Target2674.281265.6716%450009000000.02902.2374%4.310266.4397%
Difference----45000-900000-0.0290-2.2374%-0.0290-0.7681%

Known prime factors (2 factors, 64.9 bits, 0.00093512% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6940513374787703928.48127
33
-27275.183e-128.537e-61.737e-5
6940513919895593031136.4216627
3 × 472
2008-09-08220922091.892e-90.00070.0014

1 Composite Factors:
P-1 results:
No P-1 results for M6940513


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08Will EdgingtonManual testing??36.421115.73004e-107.3372.77791e-9


ECM factoring results:
No ECM results for M6940513


Lucas-Lehmer results:
No L-L results for M6940513


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-24Oliver KruseGTX-7
374787703
91989559303
4BFF3D80CB6BFE__no
2019-02-03arnaudstm-11-010
374787703
91989559303
4BFF3D80CB6BFE1Ano


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
TF factor-bounds graph:
2
this exponent TF target: 67
TF double-checked to: 67.8
250
260
270
Last modified: 2023-04-26T21:34:10+00:00