is 2 62439329 - 1
has 18796111 decimal digits
takes 146.675 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
Actual27461.273364.8649%595000121975004.17983.8766%65.453266.2269%1.3620%
PrimeNet2703.826962.8571%260000120000003.06435.1471%6.891264.7689%1.9118%
GPU7227461.273364.8649%400000130000003.70073.7251%64.974166.1737%1.3088%
Difference---+195000-802500+0.4791+0.1515%+0.4791+0.0532%+0.0532%

Known prime factors:
No known factors for M62439329

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-04-12T07:23:00NesowaHost59500012197500---4.180--3.877%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-07-06T00:00:00ANONYMOUSv4_computers21259--0.001--
2016-02-23T17:18:23Mark RoseManual testing259263--0.024--
2008-12-24T01:36:00DerekDerek_Desk263264--0.031--
2009-02-17T09:38:00ANONYMOUS3matsch1264265--0.060--
2009-02-18T19:57:00glennpatglenn11-PC64265266--0.120--
2009-02-20T09:45:00glennpatglenn11-PC64266267--0.239--
2009-02-21T07:27:00glennpatglenn11-PC64267268--0.479--
2009-08-03T19:35:00subgeniusHDO-c1268269--0.957--
2012-04-20T13:31:00Johan ViljoenL1269270--1.915--
2012-11-04T17:34:00TDH-DXLnorthstar270271--3.830--
2013-03-28T10:25:00BdotManual testing271272--7.660--
2013-03-28T10:26:00BdotManual testing272273--15.32--
2016-02-28T12:51:11ANONYMOUSManual testing273274--30.64--


ECM factoring results:
No ECM results for M62439329


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-06-23T09:14:00ChwiliwrJohn60DB17AEBFE5A6A__146.7


PRP results:
No PRP results for M62439329


P-1 factor-bounds graph:
B1 = 595000, B2 = 12197500 (P-1 stage 2)
B1 = 595000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2016-02-28T12:51:11+00:00