is 2 57656903 - 1
has 17356458 decimal digits
takes 122.201 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L9605476E2224DD5Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27466.355764.8649%580000124700003.77333.8437%70.129066.2154%1.3505%
PrimeNet2692.070662.3188%260000110000002.59735.5368%4.667964.4052%2.0863%
GPU7227333.176364.3836%400000130000003.33904.0743%36.515365.8347%1.4511%
Difference+1+33.1794+0.4813%+180000-530000+0.4343-0.2306%+33.6137+0.3807%+0.3807%

Known prime factors:
No known factors for M57656903

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-05-20T10:38:00FreeTibetL8-258000012470000---3.773--3.844%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.08114e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.16229e-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--
2002-12-02T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-09-21T00:00:00Team Prime Ribv4_computers21260--0.003--
2016-02-23T17:05:26Mark RoseManual testing260263--0.025--
2008-10-15T18:01:00Sturle Sundenikabrik.ifi263264--0.034--
2008-10-16T00:40:00Sturle Sundenikabrik.ifi264265--0.065--
2008-10-17T02:32:00Sturle Sundenikabrik.ifi265266--0.130--
2008-10-17T22:28:00Sturle Sundefizir.ifi266267--0.259--
2009-06-01T17:06:00Chang Chia-Tcheeuler01267268--0.518--
2011-05-10T23:38:00C.LeeLaptop268269--1.037--
2011-08-04T18:18:00carlos56amd955tfl269270--2.074--
2011-10-07T21:14:00XyzzyManual testing270271--4.147--
2011-11-29T16:55:00S34960v5Manual testing271272--8.295--
2015-12-13T21:35:14GregManual testing272273--16.59--
2018-12-10T01:20:10chuenkitManual testing273274--33.18--


ECM factoring results:
No ECM results for M57656903


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2012-06-16T06:45:00Robert Binkleypurdue9605476E2224DD5C122.2
2020-09-17T01:16:22curtiscjckl3w13200l9605476E2224DD5C122.2


PRP results:
No PRP results for M57656903


P-1 factor-bounds graph:
B1 = 580000, B2 = 12470000 (P-1 stage 2)
B1 = 580000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-09-17T01:16:22+00:00