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> Date: Tue, 24 Oct 2006 12:21:42 -0600
> From: [EMAIL PROTECTED]
> To: [email protected]
> Subject: [Prime] Curious recent GIMPS member
>
> I have been personally interested in primes for many years and have recently
? :)))
joined GIMPS (4 years ago) and as I review the various statistics and reports
I find it more interesting all the time.
>
> There are a few points that I can't seem to figure out or understand. I hope
> these aren't stupid questions.
>
> 1. On the Status page: http://www.mersenne.org/status.htm the stats table
> has ranges of numbers. Does anyone know why the ranges are what they are?
> They aren't powers of 2 or of 10 but they seem to be non-arbitrary. The first
> rew (other than the very first) are about 150,000 numbers, the next groups
> almost 300,000 and the last few 550,000.
They are the FFT ranges
>
> 2. The upper limit is 79,300,000. Again a curious number. Why this number?
> 2 to the 26th would be about 67,000,000.
See above
>
> 3. Until the last status update there was 1 "status unknown" number between
> 15,300,000 and 17,850,000. I thought I could look in the "Assigned" and
> "Cleared" reports on the http://www.mersenne.org/primenet/status.shtml page
> of hourly stats to find the one missing number. I found 15,546,877 with a
> "D*" in the second column from which I understand the "D" means double
> checking and the "*" means the preliminary factoring phase of LL. While
> several lower exponents had a blank (LL test) in that column, this was the
> lowest exponent with a "*". However, the most recent GIMPS stats page from
> today shows there are now NO "status unknown" numbers in that range while
> 15,546,877 is still not cleared. Which number was it or more importantly how
> could I have determined this? Of course, this isn't something I NEED to
> know; I just like to understand these things.
Likewise I am a newby
what happens when a LL test is proved wrong?
David Eddy
>
> Thanks
>
> Wayne
>
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