is 2 697681561 - 1
has 210023078 decimal digits
takes 22,618.126 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%
PrimeNet280350.971862.5000%2600000180000000576.55865.6317%927.530464.6119%2.1119%
GPU722845,615.552864.2857%4000000180000000638.78364.2186%6,254.336465.7924%1.5066%
Difference-16-5,615.4673-8.4034%-4000000-180000000-638.7836-4.2186%-6,254.2509-9.9100%-9.9100%

Known prime factors (1 factor, 64.9 bits, 0.00000930% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
697681561338608781021427267432064.87624266714211
33 × 1907 × 471299
2012-01-2519074712990.00801.29182.2544

P-1 results:
No P-1 results for M697681561


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2012-01-25T14:29:00ANONYMOUSManual testing??64.876200.00346,3510.006
2010-01-04T00:00:00lindedv4_computers261262--0.000--
2010-07-18T09:21:00Architects Cubedm1_16263264--0.003--
2022-08-10T19:29:56LordJuliusManual testing2126864.876200.00846,3510.016


ECM factoring results:
No ECM results for M697681561


Lucas-Lehmer results:
No L-L results for M697681561


PRP results:
No PRP results for M697681561


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
TF factor-bounds graph:
268
264
262
2
250
260
270
280
290
2100
Last modified: 2022-08-10T19:29:56+00:00