is 2 62990029 - 1
has 18961889 decimal digits
takes 147.968 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L7C57C4D171B3EF__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275121.478165.3333%595000120487504.15223.5093%125.630366.5499%1.2166%
PrimeNet2703.793562.8571%260000120000003.06435.1527%6.857764.7710%1.9139%
GPU7227460.737664.8649%400000130000003.70073.7293%64.438466.1752%1.3103%
Difference+1+60.7405+0.4685%+195000-951250+0.4515-0.2200%+61.1919+0.3747%+0.3747%

Known prime factors:
No known factors for M62990029

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-07-14T10:19:00ANONYMOUS59500012048750---4.152--3.509%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-07-21T00:00:00ANONYMOUSv4_computers21259--0.001--
2016-02-23T17:18:37Mark RoseManual testing259263--0.024--
2009-02-05T19:53:00Wojciech Florekarmada4263264--0.031--
2009-02-19T03:41:00riccardo ubertiNeoCrunchDuo264265--0.059--
2009-02-25T14:37:00riccardo ubertiAthlonCrunch265266--0.119--
2009-08-13T01:41:00CubeQuest.orgprocyon266267--0.237--
2009-10-15T21:05:00Team_Elteor_Borislavj~BroncoATI1267268--0.475--
2009-10-21T21:39:00ColinColin1268269--0.949--
2011-12-21T07:51:00Nick WagersM3N78269270--1.898--
2012-11-02T04:57:00Jase428270271--3.796--
2013-04-11T22:06:00kdgehmanManual testing271272--7.593--
2013-04-11T22:06:00kdgehmanManual testing272273--15.19--
2013-07-17T22:42:00Jerry HallettManual testing273274--30.37--
2020-10-28T14:34:05laxeyeManual testing274275--60.74--


ECM factoring results:
No ECM results for M62990029


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-09-15T14:17:00Evil Geniussupercomputer7C57C4D171B3EF__148.0


PRP results:
No PRP results for M62990029


P-1 factor-bounds graph:
B1 = 595000, B2 = 12048750 (P-1 stage 2)
B1 = 595000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-10-28T14:34:05+00:00