is 2 6916697 - 1
has 2082134 decimal digits
takes 1.508 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
Actual2674.296065.6716%----4.296065.6716%
Target2674.296065.6716%450009000000.02902.2361%4.324966.4393%
Difference----45000-900000-0.0290-2.2361%-0.0290-0.7676%

Known prime factors (3 factors, 115.4 bits, 0.00166785% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
691669741500183825.3073
3		-136.467e-133.506e-76.435e-7
69166975976026208011239.12043200
26 × 33 × 52		2008-09-0825251.430e-87.905e-61.609e-5
691669721493518620318891650.933155374152
23 × 3 × 17 × 380819		2014-06-12173808193.836e-50.00660.0123

4 Composite Factors:
P-1 results:
No P-1 results for M6916697


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08Will EdgingtonManual testing??39.120123.71285e-97.3411.80725e-8
2014-06-12TJAOIManual testing??50.933161.66723e-57.3418.11530e-5


ECM factoring results:
No ECM results for M6916697


Lucas-Lehmer results:
No L-L results for M6916697


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-19treborDesktop
41500183
597602620801
2149351862031889
43E34C12C2AA58__no
2019-01-23ATHec2-PRPCFDC2
41500183
597602620801
2149351862031889
43E34C12C2AA58ABno


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
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