is 2 9658003 - 1
has 2907349 decimal digits
takes 2.817 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L349C347E334374AFdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2673.076664.1791%11500021850000.09633.4723%3.172965.4229%1.2438%
PrimeNet2640.368562.5000%4000011000000.04133.5096%0.409963.8161%1.3161%
GPU722686.171664.7059%6500015000000.06062.5539%6.232165.6073%0.9014%
Difference-1-3.0949-0.5268%+50000+685000+0.0358+0.9185%-3.0592-0.1843%-0.1843%

Known prime factors (1 factor, 80.7 bits, 0.00083549% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
965800319529537242731263592077932580.692101105462706582632
23 × 5036173 × 2509481473
2015-03-065036173250948147327,83459.836108.00

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-06-30T00:00:00foxkidv4_computers55000880000---0.042--2.451%
2013-02-18T02:24:00NesowaEPC1150002185000---0.096--3.472%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-05-30T00:00:00ANONYMOUSv4_computers21264--0.369--
1999-07-12T00:00:00ANONYMOUSv4_computers21264--0.369--
1999-07-27T00:00:00ANONYMOUSv4_computers21264--0.369--
2013-08-28T07:19:00NesowaManual testing264265--0.387--


ECM factoring results:

Old Calculation Method

Total ECM effort:38.143 GHz-days
Estimated T-Level:4.300
DigitsB1CurvesCompleteFacMiss
201100086 / 1000.86042.133%
255000086 / 2800.30773.514%

New Calculation Method

Total ECM effort:38.143 GHz-days
Estimated T-Level:4.300
DigitsB1CompleteFacMiss
20110003.3083.660%
25500000.30673.635%
302500000.01998.088%


ECM Summary

B1B2factorcurvesGHz-days
5000050000008638.14


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-03-22T00:00:00ANONYMOUSv4_computers349C347E334374AF2.817
2003-06-30T00:00:00foxkidv4_computers349C347E334374AF2.817


PRP results:
dateuseridcompidcofactorsres64PRP
2019-10-17T17:11:05mnd927016b
1952953724273126359207793
0DF6E496EB6B6C__no
2020-12-20T08:19:56Richard Thomasdjinn.pc3
1952953724273126359207793
0DF6E496EB6B6C80no


P-1 factor-bounds graph:
B1 = 115000, B2 = 2185000 (P-1 stage 2)
B1 = 115000 (P-1 stage 1)
B1 = 55000, B2 = 880000 (P-1 stage 2)
B1 = 55000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
265
264
250
260
270
280
290
2100
Last modified: 2020-12-20T08:19:56+00:00