is 2 697747681 - 1
has 210042982 decimal digits
takes 22,620.269 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
Actual2710.685257.7465%----0.685257.7465%0.0000%
PrimeNet280350.938662.5000%2600000180000000576.55865.6318%927.497264.6119%2.1119%
GPU722845,615.020664.2857%4000000180000000638.78364.2186%6,253.804265.7924%1.5067%
Difference-13-5,614.3354-6.5392%-4000000-180000000-638.7836-4.2186%-6,253.1191-8.0459%-8.0459%

Known prime factors (1 factor, 70.2 bits, 0.00001005% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
69774768113170648351693500485992270.158943797357579
3 × 2399 × 131137607
2018-11-2923991311376070.4566335.96627.29

P-1 results:
No P-1 results for M697747681


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-01-04T00:00:00lindedv4_computers261262--0.000--
2010-07-18T10:31:00Architects Cubedm1_75263264--0.003--
2012-01-25T11:37:00laleraManual testing264265--0.005--
2013-11-23T03:13:00sasakiManual testing265266--0.011--
2014-09-15T13:27:00sasakiManual testing266268--0.064--
2022-08-10T19:30:01LordJuliusManual testing21268--0.085--
2017-06-16T15:01:15ConductorManual testing268269--0.086--
2018-09-21T21:37:25srow7Manual testing269270--0.171--
2018-11-29T17:14:33Niels_Mache_NextcloudManual testing27027170.158220.11446,3540.234


ECM factoring results:
No ECM results for M697747681


Lucas-Lehmer results:
No L-L results for M697747681


PRP results:
No PRP results for M697747681


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
108
109
TF factor-bounds graph:
271
270
269
268
266
265
264
262
250
260
270
280
290
2100
Last modified: 2022-08-10T19:30:01+00:00