is 2 63696343 - 1
has 19174510 decimal digits
takes 149.627 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L53891B0CE90E8B77double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27460.064164.8649%570000114000003.95133.8131%64.015466.2046%1.3397%
PrimeNet2703.751462.8571%260000120000003.06435.1599%6.815764.7737%1.9165%
GPU7227460.064164.8649%400000140000003.88633.7886%63.950466.1960%1.3311%
Difference---+170000-2600000+0.0650+0.0245%+0.0650+0.0086%+0.0086%

Known prime factors:
No known factors for M63696343

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-10-06T15:40:00TheJudgerManual testing57000011400000---3.951--3.813%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-08-25T00:00:00ANONYMOUSv4_computers21259--0.001--
2016-02-23T17:18:54Mark RoseManual testing259263--0.024--
2009-02-25T07:31:00Wojciech Florekarmada1263264--0.031--
2009-09-07T23:08:00eon_blue_apocalypseCeasar264265--0.059--
2009-09-18T06:17:00Bruce J. WilderTALON265266--0.117--
2009-11-24T19:58:00steinrarjb266267--0.235--
2009-11-27T23:12:00lindedW861436QU2P-FA202267268--0.469--
2009-12-03T16:08:00lindedW861436QU2P-FA202268269--0.939--
2012-01-07T10:55:00kksamyncard1269270--1.877--
2012-08-27T13:49:00Simon HarrisonManual testing270271--3.754--
2013-07-15T15:10:00krackerManual testing271272--7.508--
2013-07-19T03:15:00krackerManual testing272273--15.02--
2013-09-27T03:48:00GrunwalderGIMPManual testing273274--30.03--


ECM factoring results:
No ECM results for M63696343


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2014-09-12T16:16:00Arthur Rosenthal3459633n_ml853891B0CE90E8B77149.6
2017-10-13T09:00:05jkosterf1953891B0CE90E8B77149.6


PRP results:
No PRP results for M63696343


P-1 factor-bounds graph:
B1 = 570000, B2 = 11400000 (P-1 stage 2)
B1 = 570000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2017-10-13T09:00:05+00:00