is 2 58348837 - 1
has 17564751 decimal digits
takes 123.667 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L3FDFAD442527ED8Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27465.568864.8649%550000110000003.44003.7277%69.008866.1746%1.3097%
PrimeNet2692.046162.3188%260000110000002.59735.5450%4.643464.4083%2.0894%
GPU7227332.782964.3836%400000130000003.33904.0804%36.121965.8369%1.4533%
Difference+1+32.7859+0.4813%+150000-2000000+0.1010-0.3526%+32.8869+0.3378%+0.3378%

Known prime factors:
No known factors for M58348837

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-10-26T07:40:00apocalypsecapn-quad55000011000000---3.440--3.728%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.05646e-5--
2000-02-09T00:00:00ANONYMOUSv4_computers21254--4.11293e-5--
2000-06-28T00:00:00ANONYMOUSv4_computers21256--0.000--
2000-06-29T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-07-17T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-09-22T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-07-30T00:00:00ANONYMOUSv4_computers21259--0.001--
2003-12-02T00:00:00ANONYMOUSv4_computers21261--0.005--
2003-12-13T00:00:00ANONYMOUSv4_computers21261--0.005--
2016-02-23T17:05:36Mark RoseManual testing261263--0.022--
2008-11-18T00:00:00ComputerraRUv4_computers263264--0.034--
2009-01-18T18:11:00carlos11264265--0.064--
2009-01-22T22:10:00carlos11265266--0.128--
2009-01-29T03:43:00carlos11266267--0.256--
2009-06-02T10:50:00lindedG88143RBXYL-TNE267268--0.512--
2011-07-02T00:15:00TheJudgerManual testing268269--1.025--
2011-07-02T00:15:00TheJudgerManual testing269270--2.049--
2011-10-20T23:11:00rlakeManual testing270271--4.098--
2012-07-17T14:48:00XyzzyManual testing271272--8.196--
2012-09-21T17:18:00Tom DuellManual testing272273--16.39--
2019-02-03T18:23:49TheJudgerManual testing273274--32.79--


ECM factoring results:
No ECM results for M58348837


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-02-17T06:17:00curtiscwde2610-50l3FDFAD442527ED8C123.7
2021-07-01T03:55:38AuspiciousLLamaxaltsdc0b0213FDFAD442527ED8C123.7


PRP results:
No PRP results for M58348837


P-1 factor-bounds graph:
B1 = 550000, B2 = 11000000 (P-1 stage 2)
B1 = 550000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-07-01T03:55:38+00:00