is 2 6916799 - 1
has 2082164 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
Actual2674.295965.6716%----4.295965.6716%
Target2674.295965.6716%450009000000.02902.2361%4.324966.4393%
Difference----45000-900000-0.0290-2.2361%-0.0290-0.7676%

Known prime factors (4 factors, 187.3 bits, 0.00270812% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
691679955334393825.7224
22		-446.468e-131.265e-62.574e-6
69167996305994325651431549.16445584629
19 × 37 × 61 × 1063		2014-04-246110631.955e-53.655e-53.925e-5
691679963226316481260711652.489457048965
3 × 5 × 31 × 97 × 10133		2014-08-1197101330.00010.00020.0003
691679911064418650291331671959.94179982219017
71 × 1126510127		2015-12-247111265101270.018019.40636.244

11 Composite Factors:
P-1 results:
No P-1 results for M6916799


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-04-24TJAOIManual testing??49.164158.70449e-67.3414.23688e-5
2014-08-11TJAOIManual testing??52.489163.01336e-57.3410.000
2015-12-24TJAOIManual testing259260*59.941190.0077.3190.033


ECM factoring results:
No ECM results for M6916799


Lucas-Lehmer results:
No L-L results for M6916799


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-11kkmrkkblmbrbkManual testing
55334393
630599432565143
6322631648126071
1106441865029133167
0EB947F9141F9A__no
2019-01-24Chang Chia-Tcheexbbbe-lt
55334393
630599432565143
6322631648126071
1106441865029133167
0EB947F9141F9A2Bno


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
260
2
this exponent TF target: 67
TF double-checked to: 67.8
250
260
270
Last modified: 2023-04-26T21:34:10+00:00