is 2 194659 - 1
has 58599 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
Actualunknown10000000020000000001.360749.5145%1.360749.5145%49.5145%
PrimeNet2400.000055.0000%2000500000.000012.4353%0.000060.5959%5.5959%
GPU722440.000059.0909%3600800000.00018.8256%0.000162.7014%3.6105%
Difference-440.0000-59.0909%+99996400+1999920000+1.3607+40.6889%+1.3607-13.1869%-13.1869%

Known prime factors (1 factor, 23.0 bits, 0.01179648% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1946598175679722.96321
3 × 7
-372.883e-122.152e-84.082e-8

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-09-02T03:39:09kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 8175679
--1.361--41.995%


Trial Factoring results:
No TF results for M194659


ECM factoring results:

Old Calculation Method

Total ECM effort:12.126 GHz-days
Estimated T-Level:28.391
DigitsB1CurvesCompleteFacMiss
2011000715 / 1007.1500.076%
2550000715 / 2802.5547.745%
30250000434 / 6400.67850.730%

New Calculation Method

Total ECM effort:12.126 GHz-days
Estimated T-Level:28.391
DigitsB1CompleteFacMiss
201100045.2310.000%
25500006.0900.227%
302500000.62053.810%
3510000000.05095.152%
4030000000.00399.674%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002811.371
250000250000003929.56
2500003375000070.190
25000038428211140.402
25000038500000210.603


Lucas-Lehmer results:
No L-L results for M194659


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T01:47:26Oliver KruseOllaptop
8175679
EE6E5280E9F6A8__no
2017-09-22T10:02:13Oliver KruseManual testing
8175679
EE6E5280E9F6A8__no
2017-10-12T05:42:53kkmrkkblmbrbkc4.xlargeEE6E5280E9F6A8__no
2020-04-17T19:02:31Oliver KruseAddPrpType5
8175679
F26D6DBC6C3B9D__no


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
220
230
240
250
260
270
280
290
2100
Last modified: 2022-05-01T04:28:49+00:00