is 2 194968691 - 1
has 58691425 decimal digits
takes 1,594.952 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
Actual278313.981264.1026%----313.981264.1026%0.0000%
PrimeNet27419.623062.1622%8000004500000038.05435.8191%57.677364.3640%2.2018%
GPU72278313.981264.1026%12000004500000042.54054.2489%356.521765.6278%1.5252%
Difference----1200000-45000000-42.5405-4.2489%-42.5405-1.5252%-1.5252%

Known prime factors:
No known factors for M194968691

P-1 results:
No P-1 results for M194968691


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2022-05-25T23:31:57LordJuliusManual testing21263--0.008--
2010-08-09T17:40:00RichardUNKNOWN263264--0.010--
2011-04-20T00:46:00tschund264265--0.019--
2013-06-22T08:24:00tscnewhp265266--0.038--
2015-09-11T16:55:00demfloroManual testing266268--0.230--
2022-05-12T17:26:34LordJuliusManual testing21268--0.306--
2015-09-11T16:55:00demfloroManual testing268269--0.307--
2015-09-11T16:55:00demfloroManual testing269270--0.613--
2015-09-11T16:55:00demfloroManual testing270271--1.226--
2015-09-11T16:55:00demfloroManual testing271272--2.453--
2017-08-02T17:50:46KEPManual testing272273--4.906--
2020-05-23T15:53:53S00030Manual testing273274--9.81--
2022-05-12T17:48:26LordJuliusManual testing274275--19.62--
2022-05-12T18:03:28LordJuliusManual testing275276--39.25--
2022-05-25T23:31:57LordJuliusManual testing276277--78.50--
2022-05-26T07:03:26LordJuliusManual testing277278--157.0--
Missing TF 78 - 79
Missing TF 79 - 80
2020-05-23T15:22:12La GüiraManual testing280281--1,256--


ECM factoring results:
No ECM results for M194968691


Lucas-Lehmer results:
No L-L results for M194968691


PRP results:
No PRP results for M194968691


TF factor-bounds graph:
281
278
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276
275
274
273
272
271
270
269
268
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265
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Last modified: 2022-05-26T07:03:26+00:00