is 2 1343197 - 1
has 404343 decimal digits
takes 0.051 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26722.121868.6567%500000150000000.07144.8827%22.193270.1871%1.5304%
PrimeNet2560.007162.5000%60001000000.00062.6104%0.007863.4789%0.9789%
GPU722600.114365.0000%5500400000.00040.9805%0.114865.3432%0.3432%
Difference+7+22.0074+3.6567%+494500+14960000+0.0710+3.9022%+22.0784+4.8439%+4.8439%

Known prime factors (3 factors, 161.4 bits, 0.01201354% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1343197112508114923691443.3554188072
23 × 3 × 7 × 97 × 257
-972571.317e-65.853e-61.093e-5
13431971655279904121931547.23461617168
24 × 32 × 449 × 953
2008-08-264499531.465e-52.638e-55.059e-5
134319720220435937208438944012270.776752698075457600
26 × 52 × 2237 × 210297853
2017-11-102237210297853259.590.63441.1847

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
134319718623242168382466497840552172890.589
13431972274963130230558361314779665332596935114.131
134319733470481259446012597054559135483139336118.010
1343197376570075208896439665253777920800420929670114001749161.365
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-17T19:05:16alpertronManual testing5000001500000012-
skipped known factor: 11250811492369
skipped known factor: 165527990412193
--0.071--4.883%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-08-26T19:53:00ANONYMOUSManual testing??47.234156.88853e-70.1111.49532e-6


ECM factoring results:

Old Calculation Method

Total ECM effort:25.180 GHz-days
Estimated T-Level:25.391
DigitsB1CurvesCompleteFacMiss
2011000301 / 1003.0104.855%
2550000301 / 2801.07534.064%
3025000050 / 6400.07892.479%

New Calculation Method

Total ECM effort:25.180 GHz-days
Estimated T-Level:25.391
DigitsB1CompleteFacMiss
201100012.2630.000%
25500001.35725.749%
302500000.11389.315%
3510000000.00899.236%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025011.68
50000500000010.047
250000350000005013.45


Lucas-Lehmer results:
No L-L results for M1343197


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T06:23:51Oliver KruseGTX-1
11250811492369
165527990412193
C697F8F203BD02__no
2017-10-24T07:46:47kkmrkkblmbrbkc4.xlarge
11250811492369
165527990412193
C697F8F203BD02__no
2017-11-11T06:31:12Oliver KruseGTX-3
11250811492369
165527990412193
2022043593720843894401
E8745BBB671228__no
2017-11-11T06:38:55ATHec2-1xf
11250811492369
165527990412193
2022043593720843894401
E8745BBB671228__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
2
240
250
260
270
280
290
2100
Last modified: 2021-08-20T12:32:20+00:00