is 2 697907281 - 1
has 210091026 decimal digits
takes 22,625.443 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
Actual2732.740858.9041%----2.740858.9041%0.0000%
PrimeNet280350.858362.5000%2600000180000000576.55865.6319%927.416964.6120%2.1120%
GPU722845,613.736664.2857%4000000180000000638.78364.2187%6,252.520265.7924%1.5067%
Difference-11-5,610.9957-5.3816%-4000000-180000000-638.7836-4.2187%-6,249.7793-6.8883%-6.8883%

Known prime factors (1 factor, 65.4 bits, 0.00000938% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
697907281497996552512001368732065.43335677844756
22 × 4337 × 2056597
2013-11-13433720565970.01285.45999.838

P-1 results:
No P-1 results for M697907281


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-03-17T00:00:00lindedv4_computers261262--0.000--
2010-07-18T13:41:00Architects Cubedm1_53263264--0.003--
2012-01-25T15:56:00laleraManual testing264265--0.005--
2013-11-13T23:22:00sasakiManual testing26526665.433200.00246,3650.005
2022-08-13T01:07:42LordJuliusManual testing2127065.433200.01346,3650.026
2022-08-13T01:07:42LordJuliusManual testing270271--0.343--
2022-08-13T01:07:42LordJuliusManual testing271272--0.685--
2022-08-13T01:07:42LordJuliusManual testing272273--1.371--


ECM factoring results:
No ECM results for M697907281


Lucas-Lehmer results:
No L-L results for M697907281


PRP results:
No PRP results for M697907281


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
TF factor-bounds graph:
273
272
271
270
266
265
264
262
250
260
270
280
290
2100
Last modified: 2022-08-13T01:07:42+00:00