is 2 63696169 - 1
has 19174458 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-LACF56EE5ECB5F521double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27460.064364.8649%570000114000003.95133.8131%64.015666.2046%1.3397%
PrimeNet2703.751462.8571%260000120000003.06435.1599%6.815764.7737%1.9165%
GPU7227460.064364.8649%400000140000003.88633.7886%63.950666.1960%1.3311%
Difference---+170000-2600000+0.0650+0.0245%+0.0650+0.0086%+0.0086%

Known prime factors:
No known factors for M63696169

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--
2009-02-25T07:01:00Wojciech Florekarmada1263264--0.031--
2009-03-02T12:58:00David Barleyken2264265--0.059--
2009-03-05T07:54:00JER_ChrisWorkLaptop265266--0.117--
2009-03-12T13:37:00JER_ChrisWorkLaptop266267--0.235--
2009-04-06T05:13:00JER_ChrisWorkLaptop267268--0.469--
2009-08-25T00:34:00S00030vd06268269--0.939--
2012-05-22T19:50:00wuxiaoDNE_Black_Sheep269270--1.877--
2012-08-27T13:49:00Simon HarrisonManual testing270271--3.754--
2013-07-15T15:09:00krackerManual testing271272--7.508--
2013-07-19T01:15:00krackerManual testing272273--15.02--
2013-09-27T03:48:00GrunwalderGIMPManual testing273274--30.03--


ECM factoring results:
No ECM results for M63696169


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2014-09-07T04:40:00Amazon EC2ACF56EE5ECB5F521149.6
2017-10-12T05:12:48jkosterf19ACF56EE5ECB5F521149.6


PRP results:
No PRP results for M63696169


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: 2017-10-12T05:12:48+00:00