is 2 2941699 - 1
has 885540 decimal digits
takes 0.250 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L85C5A0A739C2EB86double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26940.584368.1159%1000000019223759100130.423214.9469%171.007572.8816%4.7657%
Target2630.542565.0794%170003000000.00401.9466%0.546665.7591%0.6798%
Difference+6+40.0418+3.0366%+9983000+19223459100+130.4192+13.0003%+170.4609+7.1225%+4.0859%

Known prime factors (1 factor, 134.6 bits, 0.00457715% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
29416993407897375272767946968111599696921228902341134.6465792396460808478275595347450056789
3 × 13 × 19 × 179 × 8647 × 8807 × 76333 × 2219039 × 3385449337
2022-12-13221903933854493376.465e+1023.02242.515

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-12-13T00:00:00ANONYMOUSv4_computers2048204800---0.002--0.199%
2003-12-23T00:00:00Team Prime Ribv4_computers1000010000---0.001--0.120%
2010-11-06T13:23:00markrtiny1050002310000---0.028--2.302%
2015-04-30T21:53:00VictordeHollanderManual testing100000020000000---0.251--5.054%
2022-11-05T10:14:39Jocelyn LaroucheManual testing12000003372218850---22.81--10.506%
2022-12-13T23:46:56mikrMSI100000001922375910041134.646130.40.501260.814.947%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-02-23T16:29:25Mark RoseManual testing21260--0.052--
2009-02-13T16:59:00Sturle Sundegobi.ifi260261--0.052--
2011-12-27T09:19:00markroldgamer261262--0.104--
2013-01-07T13:49:00dbaughManual testing262263--0.334--
2015-04-25T17:16:00VictordeHollanderManual testing263264--0.667--
2015-04-25T17:16:00VictordeHollanderManual testing264265--1.270--
2016-02-24T09:33:37ramgeisManual testing265266--2.540--
2017-11-28T10:01:34Gordon SpenceManual testing266267--5.081--
2018-12-22T00:20:04chuenkitManual testing267268--10.16--
2021-05-24T11:36:22TJAOIManual testing268269--20.32--


ECM factoring results:
Total ECM effort:14.619 GHz-days
Estimated T-Level:22.220
DigitsB1CompleteFacMiss
20110004.7980.825%
25500000.44464.149%
302500000.02897.234%
3510000000.00199.869%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010211.81
500006750000141.868
50000690000070.945


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-02-19T00:00:00ANONYMOUSv4_computers85C5A0A739C2EB860.250
1999-05-23T00:00:00ANONYMOUSv4_computers85C5A0A739C2EB860.250
2018-10-10T19:03:41kkmrkkblmbrbkold85C5A0A739C2EB860.250


PRP results:
dateuseridcompidcofactorsres64PRP
2022-12-14T19:57:33/r/counting
34078973752727679469681115996969212289023
E5A85208814E618Cno


P-1 factor-bounds graph:
B1 = 10000000, B2 = 19223759100 (P-1 stage 2)
B1 = 1200000, B2 = 3372218850 (P-1 stage 2)
B1 = 10000000 (P-1 stage 1)
B1 = 1000000, B2 = 20000000 (P-1 stage 2)
B1 = 1200000 (P-1 stage 1)
B1 = 1000000 (P-1 stage 1)
B1 = 105000, B2 = 2310000 (P-1 stage 2)
B1 = 105000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 2048 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
269
268
267
266
265
264
263
262
261
260
250
260
270
280
290
2100
2110
2120
2130
2140
Last modified: 2022-12-14T19:57:33+00:00