is 2 697896487 - 1
has 210087777 decimal digits
takes 22,625.093 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
Actual2680.042655.2239%----0.042655.2239%0.0000%
PrimeNet280350.863762.5000%2600000180000000576.55865.6319%927.422364.6120%2.1120%
GPU722845,613.823464.2857%4000000180000000638.78364.2187%6,252.607065.7924%1.5067%
Difference-16-5,613.7808-9.0618%-4000000-180000000-638.7836-4.2187%-6,252.5644-10.5685%-10.5685%

Known prime factors (1 factor, 67.9 bits, 0.00000973% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6978964872782625127240125600872167.915199358012189
72 × 31 × 131242931		2014-12-07491312429310.0807336.13627.79

P-1 results:
No P-1 results for M697896487


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-03-17T00:00:00lindedv4_computers261262--0.000--
Missing TF 62 - 63
2010-07-18T13:30:00Architects Cubedm1_54263264--0.003--
2012-01-25T14:36:00ANONYMOUSManual testing264265--0.005--
2013-11-24T10:36:00sasakiManual testing265266--0.011--
2013-12-04T10:00:00sasakiManual testing266267--0.021--
2014-12-07T00:30:00sasakiManual testing26726867.915210.03846,3640.078


ECM factoring results:
No ECM results for M697896487


Lucas-Lehmer results:
No L-L results for M697896487


PRP results:
No PRP results for M697896487


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
266
265
264
262
250
260
270
280
290
2100
Last modified: 2014-12-07T00:30:00+00:00