is 2 62319377 - 1
has 18760002 decimal digits
takes 146.393 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27461.391364.8649%550000105875003.73613.7291%65.127466.1751%1.3102%
PrimeNet2703.834362.8571%260000120000003.06435.1459%6.898664.7685%1.9113%
GPU7227461.391364.8649%400000130000003.70073.7242%65.092066.1734%1.3085%
Difference---+150000-2412500+0.0354+0.0049%+0.0354+0.0017%+0.0017%

Known prime factors:
No known factors for M62319377

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-06-20T15:19:00Team_InspectorSpudBoy355000010587500---3.736--3.729%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-06-30T00:00:00ANONYMOUSv4_computers21259--0.001--
2003-07-06T00:00:00ANONYMOUSv4_computers21259--0.001--
2016-02-23T17:18:20Mark RoseManual testing259263--0.024--
2008-12-31T20:05:00DerekDerek_Desk263264--0.032--
2009-08-12T17:17:00Sturle Sundedittersdorf.ifi264265--0.060--
2009-10-14T05:11:00Sturle Sundegoldiek.ifi265266--0.120--
2010-02-18T22:36:00arnaudSRV-240266267--0.240--
2010-02-21T19:17:00arnaudSRV-240267268--0.480--
2010-02-27T00:46:00arnaudSRV-240268269--0.959--
2011-12-01T15:57:00Helmut KirrmaierSunX4170M2293269270--1.919--
2012-09-05T08:01:00MadPooIntCache02270271--3.837--
2013-03-12T02:14:00kdgehmanManual testing271272--7.674--
2013-03-12T02:14:00kdgehmanManual testing272273--15.35--
2013-05-29T18:58:00Tom DuellManual testing273274--30.70--


ECM factoring results:
No ECM results for M62319377


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-11-15T20:00:00Robish12CD9AAE0BAE7481__146.4


PRP results:
No PRP results for M62319377


P-1 factor-bounds graph:
B1 = 550000, B2 = 10587500 (P-1 stage 2)
B1 = 550000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2016-02-23T17:18:20+00:00