is 2 104915621 - 1
has 31582749 decimal digits
takes 417.732 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
Actual277291.740864.9351%17500003400000020.24744.2888%311.988269.2239%6.7239%
PrimeNet2729.115362.5000%450000220000009.37655.3954%18.491767.8954%5.3954%
GPU72276145.869564.4737%6500002400000011.09733.9266%156.966968.4003%3.9266%
Difference+1+145.8712+0.4614%+1100000+10000000+9.1501+0.3622%+155.0213+0.8236%+0.8236%

Known prime factors (1 factor, 78.1 bits, 0.00007443% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1049156213215073211092794130266232478.0891532218548795891
3 × 11 × 178639 × 259914493		1786392599144932020-06-291,112.882.730152.70

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-06-29T02:25:03Runtime ErrorManual testing175000034000000122478.08920.25835.540.494.289%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-19T16:31:00zygC7B2E83D4263264--0.019--
2010-08-30T00:10:00garonorth264265--0.036--
2012-05-08T14:34:00mmVIR004265266--0.071--
2013-09-09T21:39:00willmoreManual testing266267--0.142--
2014-05-12T01:19:00SMoffatManual testing267268--0.285--
2014-06-08T01:35:00SMoffatManual testing268269--0.570--
2014-06-11T00:31:00Quantum SingularityManual testing269270--1.140--
2014-06-24T22:23:00Quantum SingularityManual testing270271--2.279--
2014-06-24T22:23:00Quantum SingularityManual testing271272--4.558--
2020-01-25T13:25:15Architects CubedManual testing272273--9.117--
2020-01-27T22:23:05Hans LoeblichManual testing273274--18.23--
2020-05-03T17:09:43TheJudgerManual testing274275--36.47--
2020-05-03T17:09:43TheJudgerManual testing275276--72.94--
2020-05-03T17:09:43TheJudgerManual testing276277--145.9--


ECM factoring results:
Exponent "104915621" not found


Lucas-Lehmer results:
Exponent "104915621" not found


PRP results:
Exponent "104915621" not found


P-1 factor-bounds graph:
B1 = 1750000, B2 = 34000000 (stage 2)
B1 = 1750000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2020-06-29T02:25:03+00:00