is 2 1653103 - 1
has 497634 decimal digits
takes 0.078 GHz-days to do one PRP test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L51B4C9A96828FAB0double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2630.965566.6667%1000000400000000.21329.1136%1.178775.7803%12.6224%
PrimeNet2570.011663.1579%70001200000.00092.5644%0.012565.7223%2.5644%
GPU722610.185865.5738%7000700000.00071.1516%0.186566.7253%1.1516%
Difference+2+0.7796+1.0929%+993000+39930000+0.2125+7.9621%+0.9922+9.0550%+9.0550%

Known prime factors (1 factor, 63.5 bits, 0.00383905% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1653103127172502240776014572063.4633846478478376
23 × 3 × 19 × 23 × 113 × 3245579
11332455792012-02-141.22150.01210.0225

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-02-14T09:06:00AxonManual testing100000100000---0.007--1.531%
2012-02-14T09:07:00AxonManual testing200000200000---0.014--2.134%
2012-02-14T09:07:00AxonManual testing300000300000---0.020--2.541%
2012-02-14T09:08:00AxonManual testing400000400000---0.027--2.852%
2012-02-14T09:08:00AxonManual testing500000500000---0.034--3.107%
2012-02-14T09:08:00AxonManual testing600000600000---0.041--3.324%
2012-02-14T09:09:00AxonManual testing700000700000---0.048--3.514%
2012-02-14T09:09:00AxonManual testing800000800000---0.055--3.682%
2012-02-14T09:09:00AxonManual testing900000900000---0.061--3.834%
2012-02-14T09:09:00AxonManual testing10000001000000---0.068--3.972%
2012-02-14T09:09:00AxonManual testing100000016000000---0.124--7.832%
2012-02-14T09:09:00AxonManual testing100000024000000---0.154--8.399%
2012-02-14T09:09:00AxonManual testing100000032000000---0.183--8.802%
2012-02-14T09:10:00AxonManual testing100000040000000---0.213--9.114%
2016-03-17T19:17:56alpertronManual testing5000001500000012---0.088--7.312%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1997-12-04T00:00:00ANONYMOUSv4_computers?256--0.006--
1997-12-21T00:00:00ANONYMOUSv4_computers?256--0.006--
1998-02-01T00:00:00ANONYMOUSv4_computers?256--0.006--
1999-07-27T00:00:00ANONYMOUSv4_computers?257--0.012--
2003-05-11T00:00:00ANONYMOUSv4_computers?258--0.023--
2010-04-29T01:50:00For Researchm1_tt260261--0.093--
2010-08-13T02:23:00GrunwalderGIMPManual testing21263--0.965--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000025114.88
50000660000060.400


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1997-12-04T00:00:00ANONYMOUSv4_computers51B4C9A96828FAB00.078
1997-12-21T00:00:00ANONYMOUSv4_computers51B4C9A96828FAB00.078
1998-02-01T00:00:00ANONYMOUSv4_computers51B4C9A96828FAB00.078


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-02T19:15:05Oliver KruseGTX-2
12717250224077601457
B423865DC373B4__no
2017-11-02T09:07:33kkmrkkblmbrbkc4.xlarge
12717250224077601457
B423865DC373B4__no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 40000000 (stage 2)
B1 = 1000000, B2 = 32000000 (stage 2)
B1 = 1000000, B2 = 24000000 (stage 2)
B1 = 1000000, B2 = 16000000 (stage 2)
B1 = 500000, B2 = 15000000 (stage 2)
B1 = 1000000 (stage 1)
B1 = 900000 (stage 1)
B1 = 800000 (stage 1)
B1 = 700000 (stage 1)
B1 = 600000 (stage 1)
B1 = 500000 (stage 1)
B1 = 400000 (stage 1)
B1 = 300000 (stage 1)
B1 = 200000 (stage 1)
B1 = 100000 (stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
108
TF factor-bounds graph:
263
261
258
257
256
250
260
270
280
290
2100
Last modified: 2020-12-22T23:23:11+00:00