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Forum: XYYXF Project 2021-07-06, 15:40
Replies: 470
Views: 95,489
Posted By pxp
I will update my table...

I will update my table (http://chesswanks.com/num/a094133.txt) as your results come in.
Forum: XYYXF Project 2021-06-10, 21:45
Replies: 470
Views: 95,489
Posted By pxp
Since I am no longer using the final column of my...

Since I am no longer using the final column of my Leyland prime indexing chart (http://chesswanks.com/num/a094133.txt) to indicate intervals, I've added a "P" therein for entries that I know are...
Forum: XYYXF Project 2021-06-09, 10:28
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the two...

I have examined all Leyland numbers in the two gaps between L(49413,580) <136550>, #2485, and L(49878,755) <143547> and found 123 new primes. That makes L(49878,755) #2610 and advances the index to...
Forum: XYYXF Project 2021-06-01, 15:50
Replies: 470
Views: 95,489
Posted By pxp
As my search of interval #22 winds down (ten or...

As my search of interval #22 winds down (ten or so day to go), I started (yesterday) the interval from L(299999,10) to L(300999,10). A preliminary estimate suggests that this will require some...
Forum: XYYXF Project 2021-04-30, 00:51
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the four...

I have examined all Leyland numbers in the four gaps between L(44541,746) <127955>, #2339, and L(49205,532) <134129> and found 99 new primes. That makes L(49205,532) #2442 and advances the index to...
Forum: XYYXF Project 2021-03-27, 14:38
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the seven...

I have examined all Leyland numbers in the seven gaps between L(48694,317) <121787>, #2221, and L(44541,746) <127955> and found 111 new primes. That makes L(44541,746) #2339.

So much for my March...
Forum: XYYXF Project 2021-03-18, 19:39
Replies: 470
Views: 95,489
Posted By pxp
Leyland primes curve fit

I was curious about how many more new primes I was going to find in my current interval (#19) as well as the two subsequent ones (#20 & #22) so I decided to do a more formal calculation instead of my...
Forum: XYYXF Project 2021-03-11, 16:31
Replies: 470
Views: 95,489
Posted By pxp
I'm guessing that I have used pfgw64 on some 5...

I'm guessing that I have used pfgw64 on some 5 million Leyland numbers since I started using it back in early July of last year. This is the first error encountered (this morning) using it:

Expr =...
Forum: XYYXF Project 2021-03-01, 18:16
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the eight...

I have examined all Leyland numbers in the eight gaps between L(45405,286) <111532>, #2070, and L(48694,317) <121787> and found 143 new primes. That makes L(48694,317) #2221.
Forum: XYYXF Project 2021-02-25, 21:38
Replies: 470
Views: 95,489
Posted By pxp
It looks like I overestimated this by a week or...

It looks like I overestimated this by a week or so. In fact, a couple of my processors have already finished their assigned ranges and I have wasted no time getting them started on interval #19.
Forum: XYYXF Project 2021-01-24, 17:34
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(144999,10) <145000> and L(145999,10) <146000> and found 7 new primes.

I started interval #18 yesterday. It may be another three days before...
Forum: XYYXF Project 2021-01-23, 00:39
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(49878,755) <143547> and L(144999,10) <145000> and found 20 new primes.
Forum: XYYXF Project 2021-01-07, 08:52
Replies: 470
Views: 95,489
Posted By pxp
Thank you. I had some wi-fi issues yesterday that...

Thank you. I had some wi-fi issues yesterday that interrupted the communication effort with my Mac-mini farm. In particular, one machine would not let me in over the network. In the past I have...
Forum: XYYXF Project 2020-12-31, 12:17
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(49205,532) <134129> and L(49413,580) <136550> and found 42 new primes.
Forum: XYYXF Project 2020-12-20, 16:56
Replies: 470
Views: 95,489
Posted By pxp
While I have you here, I've been wondering if you...

While I have you here, I've been wondering if you might prefer Sergey over Serge in my Leyland primes (http://chesswanks.com/num/a094133.txt) indexing effort. It's an easy fix.
Forum: XYYXF Project 2020-12-19, 22:43
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(145999,10) <146000> and L(146999,10) <147000> and found 17 new primes.

I am going to be doing intervals #23 and #24, postponing #18 until...
Forum: XYYXF Project 2020-12-18, 16:16
Replies: 470
Views: 95,489
Posted By pxp
47 is 40182, known since Nov 2014. Why is 27 a...

47 is 40182, known since Nov 2014. Why is 27 a zero?
Forum: XYYXF Project 2020-12-16, 11:25
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(146999,10) <147000> and L(147999,10) <148000> and found 12 new primes.
Forum: XYYXF Project 2020-11-18, 12:46
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the four...

I have examined all Leyland numbers in the four gaps between L(222748,3) <106278>, #1986, and L(45405,286) <111532> and found 80 new primes. That makes L(45405,286) #2070.

That was interval #17....
Forum: XYYXF Project 2020-11-08, 04:05
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(147999,10) <148000> and L(148999,10) <149000> and found 11 new primes.
Forum: XYYXF Project 2020-11-04, 15:12
Replies: 470
Views: 95,489
Posted By pxp
Thanks for the heads-up. Occasionally my internet...

Thanks for the heads-up. Occasionally my internet service provider changes the number of my IP address. This happens rarely but without notice and since I access chesswanks.com...
Forum: XYYXF Project 2020-10-22, 08:51
Replies: 470
Views: 95,489
Posted By pxp
I finished that run up to 500000 and then decided...

I finished that run up to 500000 and then decided to do from there to 10^6. I sieved that file to 10^12 resulting in 1309 candidates (http://chesswanks.com/num/L(x,10).txt). The durations total to...
Forum: XYYXF Project 2020-10-19, 15:03
Replies: 470
Views: 95,489
Posted By pxp
It's actually nice to see another name in the...

It's actually nice to see another name in the recents. I am still ten days away from discovering this one. Be sure to claim it on PRPTop so that they will be up-to-date.
Forum: XYYXF Project 2020-10-10, 07:07
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the three...

I have examined all Leyland numbers in the three gaps between L(41507,322) <104094>, #1945, and L(222748,3) <106278> and found 38 new primes. That makes L(222748,3) #1986.
Forum: XYYXF Project 2020-10-09, 17:34
Replies: 470
Views: 95,489
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(148999,10) <149000> and L(149999,10) <150000> and found 14 new primes.
Showing results 1 to 25 of 200

 
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