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Forum: XYYXF Project 2021-03-01, 18:16
Replies: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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: 450
Views: 64,468
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.
Forum: XYYXF Project 2020-10-06, 20:24
Replies: 39
Views: 10,251
Posted By pxp
As per my examples, when p = n has been reached,...

As per my examples, when p = n has been reached, I expect the output file to be sieved to n (and you have said that my expectation is correct). Instead, the program is saying p ~ 200000 but the...
Forum: XYYXF Project 2020-10-05, 16:22
Replies: 39
Views: 10,251
Posted By pxp
When p=3 and one has divided all initial...

When p=3 and one has divided all initial candidates by 3, one has sieved to 3. When p=5 and one has divided all remaining candidates by 5, one has sieved to 5. When p=7 and one has divided all...
Forum: XYYXF Project 2020-10-04, 23:10
Replies: 39
Views: 10,251
Posted By pxp
I am looking at this now. One of my runs was...

I am looking at this now. One of my runs was updated at 2:48 pm today: sieved to 11 (149.2 MB); then at 3:49 pm: sieved to 13 (142.2 MB); then at 4:50 pm: sieved to 13 (140.3 MB); then at 5:51 pm:...
Forum: XYYXF Project 2020-10-03, 21:43
Replies: 39
Views: 10,251
Posted By pxp
What I am going to do is multi-thread these runs...

What I am going to do is multi-thread these runs to -P1e9 and after several days just rescue (move elsewhere) whatever output file is there and then kill the run. Also, in the future, I think I will...
Forum: XYYXF Project 2020-10-03, 21:19
Replies: 39
Views: 10,251
Posted By pxp
I tried: mm4:rogue1 pxp$ ./xyyxsieve...

I tried:

mm4:rogue1 pxp$ ./xyyxsieve -i19.ini -o19.txt -w1e4 -p3 -P1e4
xyyxsieve v1.5, a program to find factors numbers of the form x^y+y^x
Sieve started: 3 < p < 1e4 with 17782120 terms (27440...
Forum: XYYXF Project 2020-10-03, 19:04
Replies: 39
Views: 10,251
Posted By pxp
According to the xyyxsieve help file the default...

According to the xyyxsieve help file the default for -w is 1e4, so that is what I have (unknowingly) been using. Trying 1e3 is "out of range". What is the point of larger -w arguments? I will guess...
Forum: XYYXF Project 2020-10-01, 21:15
Replies: 39
Views: 10,251
Posted By pxp
Unfortunately, this fix is no longer working well...

Unfortunately, this fix is no longer working well on my now much larger input files. The interruptions (after about a day of sieving) run into an error that has one or more workers not responding...
Forum: XYYXF Project 2020-10-01, 01:59
Replies: 450
Views: 64,468
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(40945,328) <103013>, #1930, and L(41507,322) <104094> and found 14 new primes. That makes L(41507,322) #1945.
Showing results 1 to 25 of 192

 
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