is 2 6928609 - 1
has 2085720 decimal digits
takes 1.511 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
Actual2674.288665.6716%----4.288665.6716%
Target2674.288665.6716%450009000000.02902.2367%4.317566.4395%
Difference----45000-900000-0.0290-2.2367%-0.0290-0.7678%

Known prime factors (1 factor, 29.0 bits, 0.00041869% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6928609540431503929.01039
3 × 13
-3131.041e-111.121e-61.930e-6

P-1 results:
No P-1 results for M6928609


Trial Factoring results:
No TF results for M6928609


ECM factoring results:
No ECM results for M6928609


Lucas-Lehmer results:
No L-L results for M6928609


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-25Oliver KruseGTX-6
540431503
B71C099E3DF2DA__no
2019-01-27ATHec2-PRPCFDC
540431503
B71C099E3DF2DA94no


P-1 factor-bounds graph:
100
101
100
101
102
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