is 2 62609999 - 1
has 18847488 decimal digits
takes 147.076 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L37436754584B9154double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27461.106364.8649%590000116525004.06263.8381%65.168966.2134%1.3485%
PrimeNet2703.816562.8571%260000120000003.06435.1488%6.880864.7696%1.9124%
GPU7227461.106364.8649%400000130000003.70073.7264%64.807066.1741%1.3093%
Difference---+190000-1347500+0.3618+0.1117%+0.3618+0.0393%+0.0393%

Known prime factors:
No known factors for M62609999

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-04-08T09:53:00rx7350RMCpc1159000011652500---4.063--3.838%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-07-06T00:00:00ANONYMOUSv4_computers21259--0.001--
2016-02-23T17:18:27Mark RoseManual testing259263--0.024--
2009-01-30T09:40:00Wojciech FlorekManual testing263264--0.031--
2009-08-14T06:06:00Jason Lynchprocyon264265--0.060--
2009-08-16T12:51:00kvizbarHome265266--0.119--
2009-10-18T22:55:00tmorrowlightbulb266267--0.239--
2009-10-22T14:40:00]mh[ Virtekwork3267268--0.477--
2009-10-27T04:29:00]mh[ Virtekwork3268269--0.955--
2012-08-02T16:26:00ktonyManual testing269273--28.64--
2016-02-26T19:41:40ANONYMOUSManual testing273274--30.55--


ECM factoring results:
No ECM results for M62609999


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2014-02-08T04:05:00Michael OrtizMTO-server37436754584B9154147.1
2021-01-21T03:05:59Milwizzleminer437436754584B9154147.1


PRP results:
No PRP results for M62609999


P-1 factor-bounds graph:
B1 = 590000, B2 = 11652500 (P-1 stage 2)
B1 = 590000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-01-21T03:05:59+00:00