is 2 1864739 - 1
has 561343 decimal digits
takes 0.101 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actualunknown500000150000000.101512.4588%0.101512.4588%-50.6991%
PrimeNet2570.010363.1579%90001600000.00143.0275%0.011766.1854%3.0275%
GPU722610.164765.5738%100001500000.00141.6887%0.166167.2625%1.6887%
Difference-61-0.1647-65.5738%+490000+14850000+0.1001+10.7701%-0.0646-54.8037%-54.8037%

Known prime factors (2 factors, 158.9 bits, 0.00852076% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1864739865238897929.689232
23 × 29
829-4.028e-117.193e-71.281e-6
186473978252185529994797469693285141061386065739129.201209820745771914454166758149910152
23 × 33 × 13 × 29 × 59 × 157 × 211 × 15887 × 61673 × 109897 × 12243241
109897122432412015-07-188.727e+100.06060.0980

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
186473967706834695812058978415808963758443088777437532948158.890
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-07-19T06:15:00alpertronManual testing500000150000001239129.2010.1010.2020.2038.883%


Trial Factoring results:
Exponent "1864739" not found


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
500005000000261.800


Lucas-Lehmer results:
Exponent "1864739" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-04T09:49:39Oliver KruseGTX-0
865238897
782521855299947974696932851410613860657
29AC41C76D948240no
2017-10-05T21:07:35Oliver KruseManual testing
865238897
782521855299947974696932851410613860657
29AC41C76D9482__no
2017-11-11T04:53:21kkmrkkblmbrbkc4.xlarge
865238897
782521855299947974696932851410613860657
29AC41C76D9482__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (stage 2)
B1 = 500000 (stage 1)
100
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102
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104
105
106
100
101
102
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TF factor-bounds graph:
220
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240
250
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290
2100
2110
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2130
Last modified: 2020-12-07T12:03:10+00:00