is 2 4693217 - 1
has 1412800 decimal digits
takes 0.618 GHz-days to do one PRP test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L33C0FADEB5FAAE8Bdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2676.331265.6716%----6.331265.6716%3.3766%
PrimeNet2610.065562.2951%200004000000.00783.1212%0.073265.4163%3.1212%
GPU722651.554564.6154%300006000000.01172.2321%1.566266.8475%2.2321%
Difference+2+4.7767+1.0563%-30000-600000-0.0117-2.2321%+4.7651-1.1759%-1.1759%

Known prime factors (1 factor, 66.1 bits, 0.00140924% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4693217812411174480407335372066.1398655163126704
24 × 32 × 73 × 103 × 151 × 167 × 317
-1673173.74233.344e-56.489e-5

P-1 results:
Exponent "4693217" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-05T00:00:00ANONYMOUSv4_computers?261--0.033--


ECM factoring results:
Total ECM effort:0.591 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

ECM Summary

B1B2factorcurvesGHz-days
50000500000030.591


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-08-30T00:00:00ANONYMOUSv4_computers33C0FADEB5FAAE8B0.618
1999-12-30T00:00:00hetmanv4_computers33C0FADEB5FAAE8B0.618


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:15:23kkmrkkblmbrbkManual testing
81241117448040733537
045FF53914981B__no
2018-03-09T10:52:44Oliver KruseGTX-3
81241117448040733537
045FF53914981B__no


P-1 factor-bounds graph:
101
102
103
101
102
103
TF factor-bounds graph:
267
261
250
260
270
280
290
2100
Last modified: 2019-04-06T00:19:33+00:00