is 2 6985639 - 1
has 2102887 decimal digits
takes 1.523 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
Actual2674.253665.6716%----4.253665.6716%
Target2674.253665.6716%450009000000.02902.2398%4.282566.4405%
Difference----45000-900000-0.0290-2.2398%-0.0290-0.7689%

Known prime factors (1 factor, 48.6 bits, 0.00069601% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
69856394329106809725591548.62130985761
3 × 23 × 37 × 53 × 229		-532291.006e-51.979e-53.410e-5

P-1 results:
No P-1 results for M6985639


Trial Factoring results:
No TF results for M6985639


ECM factoring results:
No ECM results for M6985639


Lucas-Lehmer results:
No L-L results for M6985639


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-26pewdesktop
432910680972559
1D7BC65A8B264B__no
2019-02-19kkmrkkblmbrbkc5.large
432910680972559
1D7BC65A8B264BA2no


P-1 factor-bounds graph:
100
101
102
100
101
102
103
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