is 2 59170381 - 1
has 17812060 decimal digits
takes 131.449 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LA1D21EBEA9BB02C2double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27464.658564.8649%555000109612503.61413.7358%68.272566.1774%1.3126%
PrimeNet2692.017762.3188%260000120000002.89795.6412%4.915664.4445%2.1257%
GPU7227332.327764.3836%400000140000003.67534.1458%36.003065.8601%1.4766%
Difference+1+32.3307+0.4813%+155000-3038750-0.0612-0.4100%+32.2695+0.3173%+0.3173%

Known prime factors:
No known factors for M59170381

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-11-23T11:58:00Koekieniodmig55500010961250---3.614--3.736%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-08T00:00:00ANONYMOUSv4_computers21253--2.02791e-5--
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.02791e-5--
2000-02-09T00:00:00ANONYMOUSv4_computers21254--4.05582e-5--
2000-03-27T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-02-18T00:00:00ANONYMOUSv4_computers21257--0.000--
2001-11-24T00:00:00ANONYMOUSv4_computers21258--0.001--
2016-02-23T17:05:53Mark RoseManual testing258263--0.026--
2008-04-16T02:59:00monstguinness263264--0.033--
2009-02-08T03:38:00lindedkctz74p264265--0.063--
2009-02-08T11:27:00Sturle Sundeothello.ifi265266--0.126--
2009-02-08T23:42:00Sturle Sundeothello.ifi266267--0.253--
2009-02-10T02:27:00Sturle Sundeothello.ifi267268--0.505--
2009-08-16T18:57:00aa98201268269--1.010--
2011-06-26T23:51:00Tom DuellManual testing269270--2.021--
2011-10-15T09:18:00Razor_FX_IIManual testing270271--4.041--
2012-07-28T19:57:00Craig MeyersManual testing271273--24.25--
2019-01-05T03:50:31-Anonymous-Manual testing273274--32.33--


ECM factoring results:
No ECM results for M59170381


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-10-12T12:44:00petershumPETER-HOMEPCA1D21EBEA9BB02C2131.4
2021-11-20T10:20:21kerrytRGPA1D21EBEA9BB02C2131.4


PRP results:
No PRP results for M59170381


P-1 factor-bounds graph:
B1 = 555000, B2 = 10961250 (P-1 stage 2)
B1 = 555000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-11-20T10:20:21+00:00