is 2 69160687 - 1
has 20819442 decimal digits
takes 184.909 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L9D9D656C5E96C0__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual275110.639664.0000%685000116450004.97053.5872%115.610165.2914%
Target27455.318563.5135%450000150000004.81773.9440%60.136264.9525%
Difference+1+55.3211+0.4865%+235000-3355000+0.1528-0.3568%+55.4738+0.3389%

Known prime factors:
No known factors for M69160687

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-01-16PascalBieriGIMPS2WEB68500011645000---4.970--3.587%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-10-22Jocelyn Larouchev4_computers21256--0.000--
2001-06-03Jocelyn Larouchev4_computers21257--0.000--
2003-11-28ANONYMOUSv4_computers21261--0.004--
2004-01-18ANONYMOUSv4_computers21262--0.009--
2004-03-08ANONYMOUSv4_computers21263--0.023--
2016-03-29Mark RoseManual testing263264--0.028--
2016-03-30Mark RoseManual testing264265--0.054--
2008-06-06James HeinrichQ6600265266--0.108--
2008-06-07James HeinrichQ6600266267--0.216--
2008-06-08James HeinrichQ6600267268--0.432--
2010-02-08SAHS Physics Clubphysicsclub10268269--0.864--
2013-05-24SMoffatManual testing269270--1.729--
2013-06-27Le ComteManual testing270271--3.458--
2014-01-10garoManual testing271272--6.915--
2014-09-16Matthias WurtingerManual testing272273--13.83--
2014-09-16Matthias WurtingerManual testing273274--27.66--
2014-09-19Matthias WurtingerManual testing274275--55.32--


ECM factoring results:
No ECM results for M69160687


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2014-12-18ANONYMOUSBIG-ONE-20009D9D656C5E96C0__184.9


PRP results:
No PRP results for M69160687


P-1 factor-bounds graph:
B1 = 685000, B2 = 11645000 (P-1 stage 2)
B1 = 685000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
266
265
264
263
262
261
257
256
this exponent TF target: 74
TF double-checked to: 67.8
250
260
270
280
Last modified: 2023-04-26T21:34:10+00:00