is 2 112721317 - 1
has 33932498 decimal digits
takes 494.721 GHz-days to do one PRP 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
Actual27316.969763.0137%12150003918375020.89676.1054%37.866469.1191%6.6191%
PrimeNet2728.484162.5000%4500002400000011.02915.5233%19.513168.0233%5.5233%
GPU72276135.768464.4737%7000002600000013.22684.0598%148.995268.5335%4.0598%
Difference-3-118.7987-1.4600%+515000+13183750+7.6699+2.0456%-111.1288+0.5856%+0.5856%

Known prime factors (1 factor, 81.2 bits, 0.00007201% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
11272131727159787461053522418671592581.16812047316418887087
3 × 13 × 23 × 3851 × 3487581421
385134875814212013-11-235,893.51,209.22,258.5

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-11-23T13:56:00Craig MeyersManual testing12150003918375062581.16820.90989.441.796.105%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-09T16:21:00rabbutrabbit263264--0.017--
2010-09-26T08:57:00CommasterCore-i7264265--0.033--
2012-06-02T03:31:00Donna NobleOpt6128x4x4265266--0.066--
2013-10-11T01:39:00SMoffatManual testing266267--0.133--
2013-10-13T17:39:00ANONYMOUSManual testing267268--0.265--
2013-10-13T17:39:00ANONYMOUSManual testing268269--0.530--
2013-10-13T17:39:00ANONYMOUSManual testing269270--1.061--
2013-10-13T17:39:00ANONYMOUSManual testing270271--2.121--
2013-10-13T17:39:00ANONYMOUSManual testing271272--4.243--
2013-10-13T17:39:00ANONYMOUSManual testing272273--8.486--


ECM factoring results:
Exponent "112721317" not found


Lucas-Lehmer results:
Exponent "112721317" not found


PRP results:
Exponent "112721317" not found


P-1 factor-bounds graph:
B1 = 1215000, B2 = 39183750 (stage 2)
B1 = 1215000 (stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
273
272
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
Last modified: 2013-11-23T13:56:35+00:00