is 2 56995129 - 1
has 17157244 decimal digits
takes 120.798 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LD3F6F5A394C8CDE0double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27467.126264.8649%570000125400003.75593.8343%70.882166.2120%1.3472%
PrimeNet2692.094762.3188%240000110000002.53925.4724%4.633964.3809%2.0620%
GPU7227333.561564.3836%400000130000003.33904.0684%36.900565.8326%1.4490%
Difference+1+33.5646+0.4813%+170000-460000+0.4170-0.2341%+33.9816+0.3795%+0.3795%

Known prime factors:
No known factors for M56995129

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-10-06T21:54:00TheJudgerManual testing57000012540000---3.756--3.834%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.10531e-5--
2000-01-19T00:00:00ANONYMOUSv4_computers21253--2.10531e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.21062e-5--
2000-06-28T00:00:00ANONYMOUSv4_computers21256--0.000--
2000-06-29T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-30T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-11-24T00:00:00ANONYMOUSv4_computers21258--0.001--
2004-01-27T00:00:00ThomRuleyv4_computers21261--0.005--
2004-02-07T00:00:00ThomRuleyv4_computers21261--0.005--
2005-01-20T00:00:00ThomRuleyv4_computers21262--0.011--
2016-02-23T16:40:43Mark RoseManual testing262263--0.017--
2008-08-31T18:57:00Sturle Sundeeames.ifi263264--0.034--
2008-09-02T01:19:00Sturle Sundedanzi.ifi264265--0.066--
2008-09-03T03:59:00Sturle Sundetristan.ifi265266--0.131--
2008-09-03T18:52:00Sturle Sundetristan.ifi266267--0.262--
2009-05-23T14:01:00Cereal Businessmary267268--0.524--
2011-04-27T21:35:00knerveoS2268269--1.049--
2011-06-14T05:40:00Paul LeylandManual testing269270--2.098--
2011-09-13T06:47:00ferdylappie270271--4.196--
2012-06-27T13:45:00Jerry HallettManual testing271272--8.391--
2016-01-03T01:59:41Mark RoseManual testing272273--16.78--
2019-02-03T18:22:43TheJudgerManual testing273274--33.56--


ECM factoring results:
No ECM results for M56995129


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-08-09T02:20:00ozkanpakdilmascix5D3F6F5A394C8CDE0120.8
2020-10-25T06:20:22dmbeesonD3F6F5A394C8CDE0120.8


PRP results:
No PRP results for M56995129


P-1 factor-bounds graph:
B1 = 570000, B2 = 12540000 (P-1 stage 2)
B1 = 570000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-10-25T06:20:22+00:00