is 2 57004853 - 1
has 17160171 decimal digits
takes 120.819 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LA2734400051CB32Adouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27467.114764.8649%600000127500003.87833.8717%70.993066.2252%1.3603%
PrimeNet2692.094362.3188%240000110000002.53925.4725%4.633564.3809%2.0621%
GPU7227333.555864.3836%400000130000003.33904.0685%36.894865.8326%1.4490%
Difference+1+33.5589+0.4813%+200000-250000+0.5393-0.1968%+34.0982+0.3926%+0.3926%

Known prime factors:
No known factors for M57004853

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-01-12T23:42:00S485122USB-A60000012750000---3.878--3.872%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-01T00:00:00ANONYMOUSv4_computers21253--2.10495e-5--
2000-01-04T00:00:00ANONYMOUSv4_computers21253--2.10495e-5--
2000-02-16T00:00:00ANONYMOUSv4_computers21254--4.20990e-5--
2000-04-05T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-08-24T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-10-19T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-07-30T00:00:00Team Prime Ribv4_computers21260--0.003--
2016-02-23T16:40:43Mark RoseManual testing260263--0.025--
2008-09-06T16:27:00Sturle Sundecelair.ifi263264--0.034--
2008-09-06T23:30:00Sturle Sundeletov.ifi264265--0.066--
2008-09-07T07:51:00Sturle Sundeletov.ifi265266--0.131--
2008-09-07T18:19:00Sturle Sundescarpia.ifi266267--0.262--
2009-05-29T20:05:00aEricaEric_q1267268--0.524--
2011-04-24T20:01:00Thomas NManual testing268269--1.049--
2011-06-18T03:35:00Per Jessendell1269270--2.097--
2011-12-22T06:17:00ANONYMOUSManual testing270271--4.195--
2012-05-11T15:07:00James HeinrichManual testing271272--8.390--
2015-12-23T11:39:24el groccoManual testing272273--16.78--
2019-02-03T18:21:13TheJudgerManual testing273274--33.56--


ECM factoring results:
No ECM results for M57004853


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2012-06-10T20:24:00GunnarLuHeckeA2734400051CB32A120.8
2020-11-01T18:38:40dmbeesonA2734400051CB32A120.8


PRP results:
No PRP results for M57004853


P-1 factor-bounds graph:
B1 = 600000, B2 = 12750000 (P-1 stage 2)
B1 = 600000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
263
260
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2020-11-01T18:38:40+00:00