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 Showing results 1 to 25 of 963 Search took 0.14 seconds. Search: Posts Made By: rudy235
 Forum: Data 2020-10-24, 23:17 Replies: 3,335 Views: 217,355 Posted By rudy235 Primes with more than 2 million digits Today we reached a milestone of sorts with the 97th and 100th primes that have more than 2 million digits. 39×26648997+1 100th. 2'001,550 digits 39x26684941+1 . 97th. 2'013,370...
 Forum: sweety439 2020-10-01, 17:10 Replies: 10 Views: 176 Posted By rudy235 Forgive me if i'm wrong. isn't it that 22,... Forgive me if i'm wrong. isn't it that 22, 33, 44... 99 are 2-digit palindromic numbers? And what about 1001, 1111, 1221, 1331... 9889, 9999. Aren't those 4 digit palindromic numbers?
 2020-08-31, 03:01 Replies: 32 Views: 10,393 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: 2,471 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: 27,196 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: 27,196 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: 1,509 Views: 103,195 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.” ...
 2020-06-26, 22:11 Replies: 9 Views: 1,108 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: 17,538 Posted By rudy235 I agree.:smile: I agree.:smile:
 Forum: Lounge 2020-06-01, 07:28 Replies: 1,509 Views: 103,195 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: 17,538 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: 27,196 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: 17,538 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: 17,538 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: 435 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...
 2020-05-01, 22:28 Replies: 32 Views: 10,393 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: 27,196 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: 174,258 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: 174,258 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: 3,335 Views: 217,355 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
 2020-02-02, 20:32 Replies: 33 Views: 9,667 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: 22,966 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: 1,509 Views: 103,195 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: 22,966 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: 174,258 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.
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