is 2 10319509 - 1
has 3106482 decimal digits
takes 3.371 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-LD7D198336DF1C022double-checked
PRP0C0F925939F147__
unverified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.879464.1791%5000050000000.15143.5409%3.030865.4475%1.2684%
PrimeNet2640.344962.5000%4500013000000.05373.7623%0.398663.9109%1.4109%
GPU722685.775964.7059%7000016000000.07262.6598%5.848665.6446%0.9388%
Difference-1-2.8965-0.5268%-20000+3400000+0.0788+0.8811%-2.8178-0.1972%-0.1972%

Known prime factors (1 factor, 72.5 bits, 0.00070252% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1031950966634686772357162935292272.497322857835447196
22 × 7 × 29 × 397608171733
2015-05-1429397608171733110.6510,26119,165

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2000-05-24T00:00:00ANONYMOUSv4_computers1200001620000---0.096--3.292%
2000-12-07T00:00:00ANONYMOUSv4_computers1200001620000---0.096--3.292%
unknown500005000000---0.151--3.541%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-08-31T00:00:00ANONYMOUSv4_computers21264--0.345--
2013-09-25T09:16:00NesowaManual testing264265--0.362--
2015-04-29T08:20:00ThaManual testing265266--0.724--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.497 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.497 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.497


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-12-31T00:00:00ANONYMOUSv4_computersD7D198336DF1C0223.371
2003-11-28T00:00:00ANONYMOUSv4_computersD7D198336DF1C0223.371


PRP results:
dateuseridcompidcofactorsres64PRP
2020-04-01T03:53:23Oliver KruseThreadripper-PC
6663468677235716293529
0C0F925939F147__no
2021-03-05T03:00:48monstedliane
6663468677235716293529
0C0F925939F147E6no


P-1 factor-bounds graph:
B1 = 50000, B2 = 5000000 (P-1 stage 2)
B1 = 120000, B2 = 1620000 (P-1 stage 2)
B1 = 120000 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-03-05T03:00:48+00:00