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Old 2016-03-07, 22:06   #12
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Quote:
Originally Posted by PawnProver44 View Post
Pfgw says it is a PRP-3, but I used other programs to prove the number prime, I am trying to find a larger term however.
What "other programs"?
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Old 2016-03-07, 22:09   #13
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Quote:
Originally Posted by paulunderwood View Post
What "other programs"?
WolframAlpha, PrimeGrid, and used BONIC.
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Old 2016-03-07, 22:12   #14
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http://www.factordb.com/index.php?query=60*79^5088%2B19

shows the number is PRP and will need to be proved with Primo in due course.

Last fiddled with by paulunderwood on 2016-03-07 at 22:13
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Old 2016-03-07, 22:45   #15
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Quote:
Originally Posted by paulunderwood View Post
http://www.factordb.com/index.php?query=60*79^5088%2B19

shows the number is PRP and will need to be proved with Primo in due course.
How do we prove 60*79^5088+19 prime?
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Old 2016-03-07, 22:57   #16
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With a program called Primo (which only runs under Linux -- not Windoze) and it would take a day or two to do.
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Old 2016-03-08, 00:06   #17
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Quote:
Originally Posted by Batalov View Post
Is the Pope Catholic?
There is no PRP of the form 60*79^n+19 in the PRPtop. Also, I am curious to find out, how long (approximately how many hours) Would it take to Completely sieve the series 60*79^n+19? (n from 15000 to 45000).

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Old 2016-03-08, 00:30   #18
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I don't know for sure, but sieving is about 5% of the time taken. You need to time an average PRP test, say (80% of 45000-15000) + 15000 i.e. n=39000 and then sieve until the elimination rate is about this time

ps. once you have sieved, you will not need the "-f" flag for PFGW.

Last fiddled with by paulunderwood on 2016-03-08 at 00:49
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Old 2016-03-08, 00:58   #19
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Quote:
Originally Posted by paulunderwood View Post
I don't know for sure, but sieving is about 5% of the time taken. You need to time an average PRP test, say (80% of 45000-15000) + 15000 i.e. n=39000 and then sieve until the elimination rate is about this time

ps. once you have sieved, you will not need the "-f" flag for PFGW.
Wow, I started this from 3:00 p.m. to 4:00 p.m. and only eliminates 700 to 1000 exponents.

Last fiddled with by PawnProver44 on 2016-03-08 at 00:59
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