is 2 697686221 - 1
has 210024481 decimal digits
takes 22,618.277 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
Actual2670.042655.2239%----0.042655.2239%0.0000%
PrimeNet280350.969562.5000%2600000180000000576.55865.6317%927.528164.6119%2.1119%
GPU722845,615.515364.2857%4000000180000000638.78364.2186%6,254.298965.7924%1.5066%
Difference-17-5,615.4727-9.0618%-4000000-180000000-638.7836-4.2186%-6,254.2563-10.5685%-1.5066%

Known prime factors (1 factor, 40.3 bits, 0.00000577% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
69768622113451390340891340.291964
22 × 241
2008-04-3042412.538e-100.00080.0012

P-1 results:
No P-1 results for M697686221


Trial Factoring results:
No TF results for M697686221


ECM factoring results:
No ECM results for M697686221


Lucas-Lehmer results:
No L-L results for M697686221


PRP results:
No PRP results for M697686221


P-1 factor-bounds graph:
100
101
100
101
102
103
TF factor-bounds graph:
267
240
250
260
270
280
290
2100
Last modified: 2008-04-30T10:30:12+00:00