is 2 6915911 - 1
has 2081897 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
Actual2674.296565.6716%----4.296565.6716%
Target2674.296565.6716%450009000000.02902.2361%4.325466.4392%
Difference----45000-900000-0.0290-2.2361%-0.0290-0.7676%

Known prime factors (1 factor, 23.7 bits, 0.00034300% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
691591113831823823.7211
1
-111.616e-133.162e-76.435e-7

P-1 results:
No P-1 results for M6915911


Trial Factoring results:
No TF results for M6915911


ECM factoring results:
No ECM results for M6915911


Lucas-Lehmer results:
No L-L results for M6915911


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-23Oliver KruseGTX-1
13831823
3FAB36266CF801__no
2019-01-22ATHec2-PRPCFDC2
13831823
3FAB36266CF8019Eno


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