is 2 64369951 - 1
has 19377287 decimal digits
takes 156.142 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27459.435664.8649%575000103500003.89563.7469%63.331266.1813%3.3242%
PrimeNet2703.712162.8571%280000120000003.23075.2173%6.942964.7950%1.9379%
GPU7227459.435664.8649%450000140000004.17943.8571%63.614966.2200%1.3552%
Difference---+125000-3650000-0.2837-0.1101%-0.2837-0.0387%-0.0387%

Known prime factors (1 factor, 75.1 bits, 0.00011663% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
64369951397625026442558589792492375.074308859196150824
23 × 3 × 11 × 17 × 63607 × 1081939
2013-11-18636071081939176.610.41890.4553

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-11-18T13:08:00markrtiny575000103500002375.0743.896312.37.7913.747%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-09-14T00:00:00ANONYMOUSv4_computers?259--0.001--
2004-01-18T00:00:00AxelFoxv4_computers?260--0.001--
2009-03-18T19:15:00Gnorfe_hytto263264--0.031--
2009-03-22T00:34:00Brian Egdellvega264265--0.058--
2009-10-01T06:16:00Prime HunterWork4265266--0.116--
2010-03-01T14:05:00MRDEDEBL67ACER-ATOM266267--0.232--
2010-03-03T19:39:00liceomajoranaorvietoinfo6267268--0.464--
2010-03-04T10:04:00liceomajoranaorvietoinfo6268269--0.929--
2012-04-20T23:03:00mgdavilaINEEnero_2010269270--1.857--
2013-05-09T07:39:00For ResearchManual testing270271--3.715--
2013-10-09T14:03:00Brian LenhartManual testing271272--7.430--
2013-11-10T06:16:00LingUaanManual testing272273--14.86--
2013-11-12T00:35:00chappjcManual testing273274--29.72--


ECM factoring results:
Exponent "64369951" not found


Lucas-Lehmer results:
Exponent "64369951" not found


PRP results:
Exponent "64369951" not found


P-1 factor-bounds graph:
B1 = 575000, B2 = 10350000 (P-1 stage 2)
B1 = 575000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2013-11-18T13:08:54+00:00