is 2 1433699 - 1
has 431587 decimal digits
takes 0.055 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L0B01B08786D98877double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26720.725468.6567%500000150000000.07144.9214%20.796870.1992%1.5425%
PrimeNet2560.006762.5000%65001100000.00072.7749%0.007463.5406%1.0406%
GPU722600.107165.0000%6000900000.00061.3538%0.107765.4738%0.4738%
Difference+7+20.6182+3.6567%+494000+14910000+0.0708+3.5676%+20.6891+4.7254%+4.7254%

Known prime factors (1 factor, 77.3 bits, 0.00538959% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
14336991822742964880242464082972477.27063567839723688252
22 × 34 × 1229 × 159639573787
2010-03-30122915963957378742,476481.52899.34

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-09-29T00:00:00Team Prime Ribv4_computers15000243750---0.002--0.837%
2016-03-17T19:14:16alpertronManual testing5000001500000012---0.071--4.921%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-10-13T00:00:00ANONYMOUSv4_computers21257--0.013--
2003-07-21T00:00:00ANONYMOUSv4_computers21258--0.027--
2022-03-07T17:32:43LordJuliusManual testing258260--0.080--
2009-02-16T05:46:00Sturle Sundegimo.ifi260261--0.107--


ECM factoring results:

Old Calculation Method

Total ECM effort:25.430 GHz-days
Estimated T-Level:25.391
DigitsB1CurvesCompleteFacMiss
2011000300 / 1003.0004.904%
2550000300 / 2801.07134.186%
3025000050 / 6400.07892.479%

New Calculation Method

Total ECM effort:25.430 GHz-days
Estimated T-Level:25.391
DigitsB1CompleteFacMiss
201100014.6150.000%
25500001.64719.258%
302500000.14186.886%
3510000000.01099.022%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000025011.81
250000350000005013.62


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-10-19T00:00:00ANONYMOUSv4_computers0B01B08786D988770.055


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T22:37:54Oliver KruseGTX-1
182274296488024246408297
CD2798CF243BA8__no
2017-10-26T23:43:31kkmrkkblmbrbkc4.xlarge
182274296488024246408297
CD2798CF243BA8__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 15000, B2 = 243750 (P-1 stage 2)
B1 = 15000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
267
261
260
258
257
250
260
270
280
290
2100
Last modified: 2022-03-07T17:32:43+00:00