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Forum: Computer Science & Computational Number Theory 2020-08-31, 03:01
Replies: 32
Views: 9,440
Posted By rudy235
Well, I must say it is impressive. ...

Well, I must say it is impressive.

Congratulations to both of you.:smile::lavalamp:
Forum: Lounge 2020-08-27, 09:04
Replies: 48
Views: 1,890
Posted By rudy235
Took about 15 min to figure the geometry. ...

Took about 15 min to figure the geometry. (asuming water temperture at 0.1ºC (32.2ºF) and air pressure about 4.6 Torr) :smile:
and then 5 mins to do the math. it comes to Sqrt(15)*4 + Sqrt(2)*2=...
Forum: Riesel Prime Search 2020-08-02, 17:36
Replies: 212
Views: 25,874
Posted By rudy235
Well, 101 happens to be prime.

Well, 101 happens to be prime.
Forum: Riesel Prime Search 2020-08-01, 17:44
Replies: 212
Views: 25,874
Posted By rudy235
Largest prime for 2020 (till now)

TO BE VERIFIED

Congratulations to Serge Batalov.

Gaussian Mersenne. #20 on the current list.

215317227 + 27658614 + 1

4,610,945 digits.
Forum: Lounge 2020-07-30, 22:25
Replies: 1,494
RIP
Views: 97,982
Posted By rudy235
Pokemon quote: “Life can be a challenge....

Pokemon quote:

“Life can be a challenge. Life can seem impossible. It’s never easy when there’s so much on the line. But you and I can make a difference. There’s a mission just for you and me.”
...
Forum: Computer Science & Computational Number Theory 2020-06-26, 22:11
Replies: 9
Views: 846
Posted By rudy235
I read it. Looks like a significant improvement...

I read it. Looks like a significant improvement at a low cost.

I just wonder if we can have an educated guess of how many pseudoprimes would result in a hypothetical search up to 101000
Forum: Cunningham Tables 2020-06-03, 21:54
Replies: 73
Sticky: 10- table
Views: 16,107
Posted By rudy235
I agree.:smile:

I agree.:smile:
Forum: Lounge 2020-06-01, 07:28
Replies: 1,494
RIP
Views: 97,982
Posted By rudy235
Thanks for posting this! :smile:

Thanks for posting this! :smile:
Forum: Cunningham Tables 2020-06-01, 05:19
Replies: 73
Sticky: 10- table
Views: 16,107
Posted By rudy235
RD Silverman (I was going to say Dr. Silverman...

RD Silverman (I was going to say Dr. Silverman but I do not know if you are or not)

Sarcasm is the lowest form of wit. (And you seem to propel yourself to that low end of the spectrum).
Forum: Riesel Prime Search 2020-06-01, 01:38
Replies: 212
Views: 25,874
Posted By rudy235
NOT YET VERIFIED

The largest Generalized Fermat of the Year. (and also the largest of the form a^219+1 )

Congratulations to Wolfang and his team.

3638450524288 + 1 3439810 L4591 May 31st 2020

Ranked as 35...
Forum: Cunningham Tables 2020-05-31, 18:59
Replies: 73
Sticky: 10- table
Views: 16,107
Posted By rudy235
This is one of the most wanted. 4. 10,323- C271

This is one of the most wanted.
4. 10,323- C271
Forum: Cunningham Tables 2020-05-31, 07:00
Replies: 73
Sticky: 10- table
Views: 16,107
Posted By rudy235
10^337-1 has new prime factor

6523 10, 337- c268 906533749251005245151122204670351312590267105760052002862150546121. c202 Wagstaff ECMNET
Forum: Lounge 2020-05-02, 19:43
Replies: 5
Views: 366
Posted By rudy235
That is a good answer but more in the spirit of...

That is a good answer but more in the spirit of the questioner Tomas Oliveira e Silva fron the University of Aveiro Portugal calculated all primes below 4*1018 in July 2014


The article in...
Forum: Computer Science & Computational Number Theory 2020-05-01, 22:28
Replies: 32
Views: 9,440
Posted By rudy235
Hello: The last post on this thread is a bit...

Hello: The last post on this thread is a bit short of twenty months old. Is there any chance some new calculation has increased the size of the known π(x) ?
For instance π(290 is very close to...
Forum: Riesel Prime Search 2020-03-04, 03:02
Replies: 212
Views: 25,874
Posted By rudy235
This one has not been yet verified but it looks...

This one has not been yet verified but it looks genuine.

6962 · 312863120 - 1

4269952 Digits. Largest of the year. Will rank 20 if verified.

https://primes.utm.edu/primes/page.php?id=130702
Forum: Riesel Prime Search 2020-03-03, 21:16
Replies: 1,952
Views: 169,958
Posted By rudy235
You are totally right!:smile: It might be posted...

You are totally right!:smile: It might be posted somewhere else? Any suggestions?
Forum: Riesel Prime Search 2020-03-03, 09:53
Replies: 1,952
Views: 169,958
Posted By rudy235
This one has not been yet verified but it looks...

This one has not been yet verified but it looks genuine.

6962 · 312863120 - 1

4269952 Digits. Largest of the year. Will rank 20 if verified.
...
Forum: Data 2020-02-23, 06:26
Replies: 3,319
Views: 210,723
Posted By rudy235
21811 Now we need to fuse the first two rows...

21811

Now we need to fuse the first two rows into one.
Only 115,789 till all tests below 59,400,000 are verified
Forum: Computer Science & Computational Number Theory 2020-02-02, 20:32
Replies: 33
Views: 9,030
Posted By rudy235
Congratulations! This is clearly a new record...

Congratulations! This is clearly a new record and very close to what is achievable with the present software, which I believe is ~ 2132928 ~ 1040015
Forum: Prime Gap Searches 2020-01-24, 00:37
Replies: 218
Views: 21,002
Posted By rudy235
Technically, yes. But you know what I mean.:smile:

Technically, yes. But you know what I mean.:smile:
Forum: Lounge 2020-01-24, 00:07
Replies: 1,494
RIP
Views: 97,982
Posted By rudy235
I "grew up" (actually it was one of the first PBS...

I "grew up" (actually it was one of the first PBS programs I enjoyed) watching the MacNeil Lehrer News Hour.

I used to sit down and wait for it at 2:59 PM. I liked a lot some sort of animated...
Forum: Prime Gap Searches 2020-01-20, 22:12
Replies: 218
Views: 21,002
Posted By rudy235
Well sure it is 12 but being that 17–19 =3*6+/-1 ...

Well sure it is 12 but being that 17–19 =3*6+/-1 and 29–31 =5*6+/-1
The gap is defined as the difference of the coefficients 3 and 5, Thus it is a gap of 2. Makes sense?
Forum: Riesel Prime Search 2020-01-20, 07:33
Replies: 1,952
Views: 169,958
Posted By rudy235
Great Start of the Year! Last year (2019) we...

Great Start of the Year!

Last year (2019) we had to wait 60 days more to get a prime over 2 million digits.
Forum: News 2020-01-18, 01:03
Replies: 505
Views: 68,337
Posted By rudy235
I think it is a little more than symbolic because...

I think it is a little more than symbolic because in the Past the limits of the report_classic have been going up.

https://www.mersenneforum.org/attachment.php?attachmentid=17164

It used to be...
Forum: Data 2020-01-18, 00:29
Replies: 3,319
Views: 210,723
Posted By rudy235
I would say the latter. The main reason would...

I would say the latter. The main reason would be that although the "all test" verificatio is slower, the Ratio has been consistently been around 1.76 . So if we plug in that Ratio when the "all...
Showing results 1 to 25 of 961

 
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