is 2 63004127 - 1
has 18966133 decimal digits
takes 148.001 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L2C58F60D86C709__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275121.450965.3333%20000004500000014.79215.1622%136.243067.1229%1.7895%
PrimeNet2703.792662.8571%260000120000003.06435.1528%6.856964.7711%1.9139%
GPU7227460.724064.8649%400000130000003.70073.7294%64.424866.1752%1.3103%
Difference+1+60.7269+0.4685%+1600000+32000000+11.0914+1.4328%+71.8182+0.9477%+0.9477%

Known prime factors (1 factor, 113.9 bits, 0.00018084% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
630041271991533397434549534882368720759540735113.939158047852756895555023115289
32 × 19 × 641 × 2749 × 11437 × 1908617 × 24028619
2019-10-201908617240286192.966e+910.60613.231

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-05-20T16:16:00TheJudgerManual testing56500011300000---3.917--3.440%
2019-10-20T11:59:48mikrS051200000045000000635113.93914.79296.029.585.162%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-17T00:00:00ANONYMOUSv4_computers21251--4.76129e-6--
1999-12-23T00:00:00ANONYMOUSv4_computers21253--1.90452e-5--
2003-07-21T00:00:00ANONYMOUSv4_computers21259--0.001--
2016-02-23T17:18:37Mark RoseManual testing259263--0.024--
2009-02-08T09:39:00Wojciech Florekarmada2263264--0.031--
2009-11-02T11:54:00Woflly264265--0.059--
2009-11-06T03:57:00Nemo_bis265266--0.119--
2009-11-11T03:30:00Jean-Paul Davalanhaie266267--0.237--
2009-11-11T22:38:00HighPriceRanchUD3ab267268--0.474--
2009-11-12T20:59:00HighPriceRanchUD3ab268269--0.949--
2011-12-19T19:26:00GIMP Philippinesbuyer03269270--1.898--
2013-03-06T07:27:00lycornManual testing270271--3.795--
2013-03-20T03:48:00RichD0Manual testing271273--22.77--
2013-03-28T22:08:00BigBrotherManual testing273274--30.36--
2019-10-05T18:10:09mikrManual testing274275--60.73--


ECM factoring results:
No ECM results for M63004127


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-09-19T13:51:00Amazon EC22C58F60D86C709__148.0


PRP results:
No PRP results for M63004127


P-1 factor-bounds graph:
B1 = 2000000, B2 = 45000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 565000, B2 = 11300000 (P-1 stage 2)
B1 = 565000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2019-10-20T11:59:48+00:00