is 2 190759 - 1
has 57425 decimal digits
takes 0.001 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LDC3D9D370B1A8E9Adouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual267155.766873.1343%10000000020000000001.360712.2887%157.127576.4358%3.3014%
PrimeNet2400.000055.0000%2000450000.000012.1395%0.000060.4628%5.4628%
GPU722440.000059.0909%3400700000.00008.4593%0.000162.5515%3.4606%
Difference+23+155.7668+14.0434%+99996600+1999930000+1.3607+3.8294%+157.1275+13.8842%+13.8842%

Known prime factors (1 factor, 80.6 bits, 0.04227753% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
19075918946330469444633658572172580.6484966038422681140512
25 × 32 × 53 × 3063121 × 106212973
2009-01-3030631211062129731,737,0870.05810.0723

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-05-06T00:00:00ANONYMOUSv4_computers10000010000000---0.004--2.603%
2002-06-02T00:00:00ANONYMOUSv4_computers327683276800---0.001--1.478%
2002-07-27T00:00:00ANONYMOUSv4_computers655366553600---0.003--2.137%
2003-02-16T00:00:00ANONYMOUSv4_computers13107213107200---0.006--2.925%
2003-10-08T00:00:00ANONYMOUSv4_computers26214426214400---0.011--3.828%
2006-02-01T00:00:00Jocelyn Larouchev4_computers10000001000000---0.007--1.915%
2017-01-10T11:43:45kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 1894633046944463365857217
--1.361--12.289%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-10T00:00:00ANONYMOUSv4_computers252253--0.003--
2000-04-27T00:00:00ANONYMOUSv4_computers21254--0.013--
2022-03-07T04:47:10LordJuliusManual testing254255--0.013--
2001-01-28T00:00:00ANONYMOUSv4_computers21256--0.050--
2002-05-05T00:00:00ANONYMOUSv4_computers21257--0.101--
2022-03-07T04:47:10LordJuliusManual testing257258--0.101--
2008-12-31T01:31:00Sturle Sundemorovan.ifi258259--0.201--
2009-01-27T16:23:00Sturle Sundegideon.ifi259260--0.403--


ECM factoring results:

Old Calculation Method

Total ECM effort:12.992 GHz-days
Estimated T-Level:28.664
DigitsB1CurvesCompleteFacMiss
2011000745 / 1007.4500.056%
2550000745 / 2802.6616.957%
30250000469 / 6400.73348.028%

New Calculation Method

Total ECM effort:12.992 GHz-days
Estimated T-Level:28.664
DigitsB1CompleteFacMiss
201100053.7610.000%
25500007.6530.047%
302500000.80044.941%
3510000000.06593.664%
4030000000.00499.565%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
5000050000002761.345
2500002500000041310.07
2500003410596370.191
2500003420125170.191
2500003600000070.195
2500003725000070.198
25000038428211140.402
25000038500000140.402


Lucas-Lehmer results:
No L-L results for M190759


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T01:29:51Oliver KruseOllaptop
1894633046944463365857217
F2C21417EEF9F3__no
2017-09-22T10:01:56Oliver KruseManual testing
1894633046944463365857217
F2C21417EEF9F3__no
2017-10-12T04:56:44kkmrkkblmbrbkc4.xlargeF2C21417EEF9F3__no
2020-04-17T18:59:09Oliver KruseAddPrpType5
1894633046944463365857217
93B446AC6CB34B__no


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
B1 = 262144, B2 = 26214400 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 100000, B2 = 10000000 (P-1 stage 2)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 262144 (P-1 stage 1)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 131072 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 65536 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
103
104
105
106
107
108
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
260
259
258
257
256
255
254
253
250
260
270
280
290
2100
Last modified: 2022-07-22T11:28:42+00:00