is 21631297-1
has 491,070 decimal digits
takes 0.073 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L7A657FBE4F985785double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2630.978466.6667%1,000,00040,000,0000.20249.1013%1.180875.7680%12.6101%
PrimeNet2570.011863.1579%7,000120,0000.00092.5578%0.012665.7157%2.5578%
GPU722610.188365.5738%6,50070,0000.00061.1185%0.188966.6923%1.1185%
Difference+2+0.7901+1.0929%+993,500+39,930,000+0.2017+7.9828%+0.9918+9.0757%+9.0757%

Known prime factors (1 factor, 74.9 bits, 0.00459083% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1631297350071664480358909647212374.89010729856809653880
23 × 5 × 3257 × 144941 × 568231
144,941568,2312012-02-103,309.80.01090.0191

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-02-10T10:06:00AxonManual testing100,000100,000---0.006--1.527%
2012-02-10T10:06:00AxonManual testing200,000200,000---0.013--2.130%
2012-02-10T10:06:00AxonManual testing300,000300,000---0.019--2.536%
2012-02-10T10:07:00AxonManual testing400,000400,000---0.026--2.847%
2012-02-10T10:07:00AxonManual testing500,000500,000---0.032--3.102%
2012-02-10T10:07:00AxonManual testing600,000600,000---0.039--3.318%
2012-02-10T10:07:00AxonManual testing700,000700,000---0.045--3.507%
2012-02-10T10:08:00AxonManual testing800,000800,000---0.052--3.676%
2012-02-10T10:08:00AxonManual testing900,000900,000---0.058--3.827%
2012-02-10T10:08:00AxonManual testing1,000,0001,000,000---0.065--3.966%
2012-02-10T10:08:00AxonManual testing1,000,0008,000,000---0.089--6.852%
2012-02-10T10:09:00AxonManual testing1,000,00016,000,000---0.118--7.820%
2012-02-10T10:09:00AxonManual testing1,000,00024,000,000---0.146--8.387%
2012-02-10T10:09:00AxonManual testing1,000,00032,000,000---0.174--8.790%
2012-02-10T10:09:00AxonManual testing1,000,00040,000,000---0.202--9.101%
2016-03-17T19:17:37alpertronManual testing500,00015,000,00012---0.084--7.301%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-06-17T00:00:00ANONYMOUSv4_computers?258--0.024--
2010-04-29T19:20:00For Researchm1_f2260261--0.094--
2010-09-13T18:09:00GrunwalderGIMPManual testing21263--0.978--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50,0005,000,00025114.10


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-02-14T00:00:00ANONYMOUSv4_computers7A657FBE4F9857850.073


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-02T14:30:18Oliver KruseGTX-0
35007166448035890964721
AE4C192B009A2B__no
2017-11-01T23:29:21kkmrkkblmbrbkold
35007166448035890964721
AE4C192B009A2B__no


P-1 factor-bounds graph:
B1 = 1,000,000, B2 = 40,000,000 (stage 2)
B1 = 1,000,000, B2 = 32,000,000 (stage 2)
B1 = 1,000,000, B2 = 24,000,000 (stage 2)
B1 = 1,000,000, B2 = 16,000,000 (stage 2)
B1 = 1,000,000, B2 = 8,000,000 (stage 2)
B1 = 500,000, B2 = 15,000,000 (stage 2)
B1 = 1,000,000 (stage 1)
B1 = 900,000 (stage 1)
B1 = 800,000 (stage 1)
B1 = 700,000 (stage 1)
B1 = 600,000 (stage 1)
B1 = 500,000 (stage 1)
B1 = 400,000 (stage 1)
B1 = 300,000 (stage 1)
B1 = 200,000 (stage 1)
B1 = 100,000 (stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
263
261
258
250
260
270
280
290
2100
Last modified: 2019-10-28T14:13:26+00:00