is 2 58776233 - 1
has 17693410 decimal digits
takes 130.573 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L5ADF3E10ABB85207double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276260.377365.7895%1000000200000006.55573.7308%266.933067.0658%1.2763%
PrimeNet2692.031262.3188%260000120000002.89795.6366%4.929164.4428%2.1239%
GPU7227332.544564.3836%400000140000003.67534.1423%36.219865.8589%1.4754%
Difference+3+227.8327+1.4059%+600000+6000000+2.8804-0.4115%+230.7132+1.2069%+1.2069%

Known prime factors:
No known factors for M58776233

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-11-18T17:58:00Sebastian HaineswrZU5kcdOyux3Ow6nm0k670000670000---2.158--1.334%
2018-10-02T22:08:25Sid & AndyEmperor_Zurg10000002000000012---6.556--3.731%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.04151e-5--
2000-02-09T00:00:00ANONYMOUSv4_computers21254--4.08302e-5--
2000-06-23T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-07-17T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-10-26T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-07-30T00:00:00ANONYMOUSv4_computers21259--0.001--
2003-12-13T00:00:001997rj7v4_computers21260--0.003--
2016-02-23T17:05:45Mark RoseManual testing260263--0.025--
2008-11-03T00:38:00Sturle Sunderodolfo.ifi263264--0.033--
2008-11-04T03:58:00Sturle Sundeaalto.ifi264265--0.064--
2008-11-05T04:37:00Sturle Sundeaalto.ifi265266--0.127--
2008-11-06T06:36:00Sturle Sundeaalto.ifi266267--0.254--
2008-11-08T06:06:00Sturle Sundeaalto.ifi267268--0.509--
2009-06-15T19:39:00magicxhmagicxh268269--1.017--
2011-05-03T13:06:00dslshadow269270--2.034--
2011-10-14T10:37:00ANONYMOUS270271--4.068--
2012-07-22T21:49:00Kyle AskineManual testing271272--8.137--
2012-10-03T20:42:00sirlprManual testing272273--16.27--
2015-01-22T02:26:00Sid & AndyManual testing273274--32.55--
2020-11-10T20:06:10-Anonymous-Manual testing274275--65.10--
2020-11-10T20:06:10-Anonymous-Manual testing275276--130.2--


ECM factoring results:
No ECM results for M58776233


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2015-07-15T03:07:00blipevclient0065ADF3E10ABB85207130.6
2021-07-27T07:17:57-Anonymous-5ADF3E10ABB85207130.6


PRP results:
No PRP results for M58776233


P-1 factor-bounds graph:
B1 = 1000000, B2 = 20000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 670000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-07-27T07:17:57+00:00