is 2 54219469 - 1
has 16321687 decimal digits
takes 107.121 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LFA3C660678F70486double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27470.562664.8649%565000118650003.38233.7640%73.944966.1873%1.3225%
PrimeNet2692.201962.3188%240000100000002.21095.3460%4.412864.3333%2.0145%
GPU7227335.279764.3836%360000120000002.84813.9229%38.127765.7808%1.3972%
Difference+1+35.2829+0.4813%+205000-135000+0.5342-0.1589%+35.8171+0.4066%+0.4066%

Known prime factors:
No known factors for M54219469

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-05-04T05:31:00S485122I52056500011865000---3.382--3.764%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-08T00:00:00ANONYMOUSv4_computers21253--2.21309e-5--
2000-01-12T00:00:00ANONYMOUSv4_computers21253--2.21309e-5--
2000-03-01T00:00:00ANONYMOUSv4_computers21254--4.42617e-5--
2000-05-31T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-08-26T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-08-31T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-04-27T00:00:00oerwinv4_computers21259--0.001--
2003-11-28T00:00:00oerwinv4_computers21262--0.011--
2008-05-10T00:00:00ANONYMOUSv4_computers21263--0.029--
2008-12-15T00:25:001997rj7Manual testing21264--0.066--
2008-12-24T23:32:00AlJomar264265--0.069--
2008-12-25T21:53:00Sturle Sundeghini.ifi265266--0.138--
2008-12-26T22:00:00Sturle Sundeghini.ifi266267--0.276--
2009-07-07T05:51:00Steve_Richtersteven1267268--0.551--
2011-04-02T21:32:00Carl4d48lrlP268269--1.103--
2011-07-22T20:21:00TheJudgerManual testing269270--2.205--
2011-09-08T01:46:00XyzzyManual testing270271--4.410--
2012-09-23T22:25:00Jerry HallettManual testing271272--8.821--
2016-02-14T06:20:12AirSquirrelsManual testing272273--17.64--
2019-08-02T17:34:06Jon PaceManual testing273274--35.28--


ECM factoring results:
No ECM results for M54219469


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2012-09-24T14:47:00LinuxNinjaElectraFA3C660678F70486107.1
2019-11-15T10:50:20-Anonymous-FA3C660678F70486107.1


PRP results:
No PRP results for M54219469


P-1 factor-bounds graph:
B1 = 565000, B2 = 11865000 (P-1 stage 2)
B1 = 565000 (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
262
259
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2019-11-15T10:50:20+00:00