is 2 64880659 - 1
has 19531025 decimal digits
takes 157.381 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27458.967764.8649%----58.967764.8649%2.0077%
PrimeNet2703.682962.8571%280000130000003.42245.2979%7.105364.8249%1.9678%
GPU7227458.967764.8649%450000140000004.17943.8609%63.147166.2214%1.3565%
Difference----450000-14000000-4.1794-3.8609%-4.1794-1.3565%-1.3565%

Known prime factors (1 factor, 83.1 bits, 0.00012815% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
64880659106706927259052469950928632683.14282233233219049509
71 × 227 × 577 × 2393 × 3695257
2013-07-092393369525742,1460.71611.3226

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-07-09T00:19:00Youcef Lhaller2683.142-314.8-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-10-08T00:00:00ANONYMOUSv4_computers?259--0.001--
2004-02-14T00:00:00AxelFoxv4_computers?260--0.001--
2009-03-14T06:26:00CPSlackerbf-st-2k3-1P263264--0.030--
2009-11-18T00:04:00riccardo ubertiNeoCrunchDuo264265--0.058--
2010-01-24T03:50:00Loïc EvannoC8CDB759B265266--0.115--
2010-01-25T02:57:00HBendtzHAL9006266267--0.230--
2010-01-25T07:19:00HBendtzHAL9006267268--0.461--
2010-01-26T17:02:00unconnectedsaudi-E5405268269--0.921--
2012-01-11T16:13:00GrunwalderGIMPcompute-0-4269270--1.843--
2012-06-17T09:33:00ANONYMOUS270271--3.686--
2013-03-07T23:40:00Jerry HallettManual testing271272--7.371--
2013-03-07T23:40:00Jerry HallettManual testing272273--14.74--
2013-06-24T23:40:00Jerry HallettManual testing273274--29.49--


ECM factoring results:
Exponent "64880659" not found


Lucas-Lehmer results:
Exponent "64880659" not found


PRP results:
Exponent "64880659" not found


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
260
259
250
260
270
280
290
2100
Last modified: 2013-07-09T00:19:20+00:00