is 278282691-1
has 23,565,439 decimal digits
takes 244.280 GHz-days to do one L-L test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27448.872463.5135%735,000735,0003.32571.8255%52.198165.3390%3.3671%
PrimeNet2716.107161.9718%320,00016,000,0005.31335.1919%11.420467.1637%5.1919%
GPU7227597.747164.0000%500,00017,000,0006.32993.7726%104.077067.7726%3.7726%
Difference-1-48.8747-0.4865%+235,000-16,265,000-3.0042-1.9471%-51.8789-2.4336%-2.4336%

Known prime factors (1 factor, 127.4 bits, 0.00016269% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
7828269121769493341889776512419501238687667720139127.3561390441045383185442131741564600
23 × 52 × 7603 × 11549 × 39119 × 70177 × 154487 × 186689
154,487186,6892015-05-272.293e+90.70691.4226

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-05-27T07:39:00aurashiftusslcburnin38735,000735,00039127.3563.326488.66.6511.825%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2004-03-16T00:00:00AxelFoxv4_computers?262--0.004--
2008-04-03T00:00:001997rj7v4_computers?264--0.025--
2010-10-24T05:24:00Ethan O'ConnorManual testing264265--0.048--
2010-10-26T17:55:00ANONYMOUS265266--0.095--
2011-01-02T09:03:00arnaudSRV-140266267--0.191--
2011-01-02T19:57:00ANONYMOUSle0bras1267268--0.382--
2011-01-03T00:41:00LingUaanRoadRunner268269--0.764--
2011-01-15T00:24:00P4 EE300SRM269270--1.527--
2013-01-24T20:32:00davidb_KSManual testing270271--3.055--
2013-01-24T20:32:00davidb_KSManual testing271272--6.109--
2013-01-24T20:32:00davidb_KSManual testing272273--12.22--
2014-09-29T18:44:00Gordon SpenceManual testing273274--24.44--


ECM factoring results:
Exponent "78282691" not found


Lucas-Lehmer results:
Exponent "78282691" not found


PRP results:
Exponent "78282691" not found


P-1 factor-bounds graph:
B1 = 735,000 (stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
262
250
260
270
280
290
2100
2110
2120
2130
Last modified: 2015-05-27T07:39:00+00:00