is 2147836281-1
has 44,503,156 decimal digits
takes 847.749 GHz-days to do one L-L test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP5425AE10FB5F30__
needs double-check

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27312.938961.6438%4,000,0004,000,00033.25943.9990%46.198365.6429%3.9990%
PrimeNet27312.938961.6438%600,00032,000,00019.21365.6456%32.152567.2894%5.6456%
GPU72277207.041063.6364%900,00034,000,00022.47824.1400%229.519167.7763%4.1400%
Difference-4-194.1020-1.9925%+3,100,000-30,000,000+10.7812-0.1409%-183.3208-2.1335%-2.1335%

Known prime factors (1 factor, 132.6 bits, 0.00008973% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
147836281854079862666497553838494731559955253160140132.65028886003384598722212123786161800
23 × 52 × 491 × 2399 × 326701 × 411637 × 617809 × 1475797
617,8091,475,7972020-07-171.006e+95.525710.455

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-07-17T06:12:30Roland ClarksonManual testing4,000,0004,000,00040132.65033.261,69566.523.999%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-01-06T03:35:00RichardFX5000_1264265--0.025--
2013-01-03T20:17:00CreweNetHome265266--0.051--
2015-03-09T17:25:00aurashiftusslcburnin06266267--0.101--
2016-03-17T21:45:04DerekManual testing267268--0.202--
2016-06-04T16:45:00DerekManual testing268269--0.404--
2016-06-08T06:13:27bastrogueManual testing269270--0.809--
2016-06-29T00:51:54bastrogueManual testing270271--1.618--
2016-09-10T18:54:29bastrogueManual testing271272--3.235--
2016-10-03T16:16:11John BurroughsManual testing272273--6.470--


ECM factoring results:
Exponent "147836281" not found


Lucas-Lehmer results:
Exponent "147836281" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2019-11-11T01:21:54Roland ClarksonManual testing5425AE10FB5F30__no


P-1 factor-bounds graph:
B1 = 4,000,000 (stage 1)
104
105
106
107
104
105
106
107
TF factor-bounds graph:
273
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271
270
269
268
267
266
265
250
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2100
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2120
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2140
Last modified: 2020-07-17T06:12:30+00:00