is 2 246713 - 1
has 74269 decimal digits
takes 0.001 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
Actualunknown30000000101202470268904,486.311472.9637%4,486.311472.9637%72.9637%
PrimeNet2400.000055.0000%2600650000.000013.9884%0.000061.2948%6.2948%
GPU722440.000059.0909%45001100000.000110.1395%0.000163.2389%4.1480%
Difference-440.0000-59.0909%+29995500+10120246916890+4,486.3113+62.8242%+4,486.3113+9.7248%+9.7248%

Known prime factors (2 factors, 137.6 bits, 0.05578765% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2467133845372476934091548.450779321008
24 × 4657 × 10459
-4657104590.00024.046e-57.711e-5
2467137037851234605465472854219612789.1851426323548942590271460
22 × 3 × 5 × 107 × 347201 × 639885187813
2020-11-07347201639885187813976,739,409283.65529.77

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
24671327063159434308462108214560492291852355504942137.635
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-08-01T23:28:29Oliver KruseOllaptop30000000300000000024-
skipped known factor: 384537247693409
--1.561--43.992%
2022-04-14T17:05:00Oliver KruseThreadripper-PC3000000010120247026890-
skipped known factor: 384537247693409
skipped known factor: 703785123460546547285421961
--4,486--63.101%


Trial Factoring results:
No TF results for M246713


ECM factoring results:

Old Calculation Method

Total ECM effort:9.931 GHz-days
Estimated T-Level:27.148
DigitsB1CurvesCompleteFacMiss
2011000579 / 1005.7900.297%
2550000549 / 2801.96114.026%
30250000275 / 6400.43065.049%

New Calculation Method

Total ECM effort:9.931 GHz-days
Estimated T-Level:27.148
DigitsB1CompleteFacMiss
201100031.7620.000%
25500004.1201.625%
302500000.40866.518%
3510000000.03296.842%
4030000000.00299.792%


ECM Summary

B1B2factorcurvesGHz-days
110001100000300.039
5000050000002741.637
250000250000002617.798
2500002500000070.209
2500003850000070.247


Lucas-Lehmer results:
No L-L results for M246713


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T06:40:27Oliver KruseOllaptop
384537247693409
3F9D8ADA7E06C5__no
2017-09-22T10:05:56Oliver KruseManual testing
384537247693409
3F9D8ADA7E06C5__no
2017-10-12T16:19:21Oliver KruseGTX-03F9D8ADA7E06C5__no
2017-11-06T16:02:18kkmrkkblmbrbkc4.xlarge
384537247693409
3F9D8ADA7E06C5__no
2020-04-17T20:14:02Oliver KruseAddPrpType5
384537247693409
4D646D7A8DD1DF__no
2020-11-08T03:27:02Ethan O'ConnorHighland2020
384537247693409
703785123460546547285421961
4D646D7A8DD1DF37no
2020-11-10T15:38:06fre_gamesgpu
384537247693409
703785123460546547285421961
4D646D7A8DD1DF37no


P-1 factor-bounds graph:
B1 = 30000000, B2 = 10120247026890 (P-1 stage 2)
B1 = 30000000, B2 = 3000000000 (P-1 stage 2)
B1 = 30000000 (P-1 stage 1)
102
103
104
105
106
107
108
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
TF factor-bounds graph:
240
250
260
270
280
290
2100
Last modified: 2022-04-30T06:07:57+00:00