is 2 6968587 - 1
has 2097754 decimal digits
takes 1.520 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
Actual2674.264065.6716%----4.264065.6716%
Target2674.264065.6716%450009000000.02902.2389%4.292966.4402%
Difference----45000-900000-0.0290-2.2389%-0.0290-0.7686%

Known prime factors (2 factors, 107.2 bits, 0.00153837% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
69685871127347343077211546.6808088780
22 × 3 × 5 × 7 × 19259		-7192592.446e-60.00030.0006
696858716559952558508599831960.522118818582293
8719 × 13627547		2016-02-158719136275470.04090.23740.4385

1 Composite Factors:
P-1 results:
No P-1 results for M6968587


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-02-15TJAOIManual testing260261*60.522190.0197.2880.090


ECM factoring results:
No ECM results for M6968587


Lucas-Lehmer results:
No L-L results for M6968587


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-29Oliver KruseGTX-2
112734734307721
1655995255850859983
84AD33FF483EFB__no
2019-02-14kkmrkkblmbrbkc5.large
112734734307721
1655995255850859983
84AD33FF483EFB2Ano


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
261
this exponent TF target: 67
TF double-checked to: 67.8
250
260
270
Last modified: 2023-04-26T21:34:10+00:00