is 2 697775987 - 1
has 210051503 decimal digits
takes 22,621.187 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2680.085455.8824%----0.085455.8824%0.0000%
PrimeNet280350.924362.5000%2600000180000000576.55865.6318%927.482964.6119%2.1119%
GPU722845,614.792864.2857%4000000180000000638.78364.2187%6,253.576565.7924%1.5067%
Difference-16-5,614.7074-8.4034%-4000000-180000000-638.7836-4.2187%-6,253.4910-9.9100%-9.9100%

Known prime factors (1 factor, 66.9 bits, 0.00000959% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6977759871410741300807592288072166.935101088409969
17 × 8263 × 719639
2014-09-1582637196390.02582.21033.4423

P-1 results:
No P-1 results for M697775987


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-03-17T00:00:00lindedv4_computers261262--0.000--
2010-07-18T10:50:00Architects Cubedm1_55263264--0.003--
2012-01-25T14:30:00ANONYMOUSManual testing264265--0.005--
2012-01-26T11:57:00laleraManual testing264265--0.005--
2013-11-23T03:14:00sasakiManual testing265266--0.011--
2014-09-15T13:27:00sasakiManual testing26626866.935210.00546,3570.010
2022-08-10T19:30:04LordJuliusManual testing2126866.935210.02646,3570.053


ECM factoring results:
No ECM results for M697775987


Lucas-Lehmer results:
No L-L results for M697775987


PRP results:
No PRP results for M697775987


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
TF factor-bounds graph:
268
266
265
264
262
250
260
270
280
290
2100
Last modified: 2022-08-10T19:30:04+00:00