is 2 56995177 - 1
has 17157258 decimal digits
takes 120.798 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27216.779263.8889%565000111587503.51014.5434%20.289365.5296%1.6407%
PrimeNet2692.094762.3188%240000110000002.53925.4724%4.633964.3809%2.0620%
GPU7227333.561564.3836%400000130000003.33904.0684%36.900565.8326%1.4490%
Difference-1-16.7823-0.4947%+165000-1841250+0.1712+0.4750%-16.6112-0.3030%-0.3030%

Known prime factors (1 factor, 73.3 bits, 0.00012856% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
56995177113994975619669019716012373.271100004054395400
23 × 52 × 47 × 12973 × 820067
2012-07-011297382006759.8610.17500.2565

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-07-01T20:22:00Jwb52zClay565000111587502373.2713.510241.67.0204.543%


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--4.21061e-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--
Missing TF 62 - 63
2008-08-30T23:58:00Sturle Sundetristan.ifi263264--0.034--
2008-08-31T16:54:00Sturle Sundebach.ifi264265--0.066--
2008-09-01T22:01:00Sturle Sundeeberlin.ifi265266--0.131--
2008-09-03T21:03:00Sturle Sundehindemith.ifi266267--0.262--
2009-09-28T08:12:00SuperNijnSupernijn_Laptop267268--0.524--
2011-04-25T20:17:00cesantoGhost268269--1.049--
2011-06-14T05:40:00Paul LeylandManual testing269270--2.098--
2011-10-05T07:03:00Ton van der Woudenlaptop270271--4.196--
2012-06-24T19:18:00Kyle AskineManual testing271272--8.391--


ECM factoring results:
No ECM results for M56995177


Lucas-Lehmer results:
No L-L results for M56995177


PRP results:
No PRP results for M56995177


P-1 factor-bounds graph:
B1 = 565000, B2 = 11158750 (P-1 stage 2)
B1 = 565000 (P-1 stage 1)
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108
TF factor-bounds graph:
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Last modified: 2012-07-01T20:22:13+00:00