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 Showing results 1 to 25 of 983 Search took 0.10 seconds. Search: Posts Made By: rudy235
 Forum: Data 2021-05-01, 22:45 Replies: 3,384 Views: 268,987 Posted By rudy235 MEGAPRIMES There is a new milestone of sorts today May Day 2021 There are now 1006 mega primes in the Prime List at utm.edu Five years ago there were only 169, meaning that 5/6 of these mega primes have...
 2021-04-27, 00:29 Replies: 7 Views: 259 Posted By rudy235 Ok Serge. Thanks So for 2 k= 1 What are... Ok Serge. Thanks So for 2 k= 1 What are then the values of k for 3, 4, 5, 6, 7, 10
 2021-04-26, 13:34 Replies: 7 Views: 259 Posted By rudy235 I fully understand the reasons behind the paucity... I fully understand the reasons behind the paucity of prime repunits to bases that are perfect powers. What I would love to understand is how to extend the Lenstra–Pomerance–Wagstaff conjecture to...
 2021-04-26, 10:49 Replies: 7 Views: 259 Posted By rudy235 Slight correction: Slight correction:
 2021-04-26, 04:39 Replies: 7 Views: 259 Posted By rudy235 Frequency of REPUNIT primes Frequency of REPUNITS Generalized repunits are [$]{a^n-1} \over {a-1}[/$] Thus if a =2 we have the Mersenne Numbers The Mersenne Exponent primes are 2, 3, 5, 7, 13, 17, 19, 31, 61, 89........
 2021-04-22, 18:53 Replies: 55 Views: 2,480 Posted By rudy235 That is so cool! How are you going about... That is so cool! How are you going about it?:spinner:
 2021-04-22, 18:41 Replies: 55 Views: 2,480 Posted By rudy235 Sergei and Ryan: Congratulations to both of you!... Sergei and Ryan: Congratulations to both of you! This is an incredible achievement! :party: We now have 4 proven repunits and 5 PRP This one took almost 14 years to come to light. I can...
 Forum: Lounge 2021-04-09, 18:14 Replies: 1,722 Views: 156,081 Posted By rudy235 There is no direct number +44 303 123 7300 is the... There is no direct number +44 303 123 7300 is the Buckingham palace exchange and they patch through to wherever Her Majesty is even if she is sailing in the Royal Yacht. I've already spoken to Her...
 Forum: Lounge 2021-04-09, 14:15 Replies: 1,722 Views: 156,081 Posted By rudy235 Hello Carlos that link goes to a source that... Hello Carlos that link goes to a source that requires a subscription. Perhaps another link?
 Forum: Lounge 2021-03-11, 01:38 Replies: 43 Views: 2,995 Posted By rudy235 Ticlio 4818 mts.24471 Ticlio 4818 mts.24471
 2021-01-31, 11:28 Replies: 34 Views: 3,198 Posted By rudy235 ONCE In English once is only one time. In Spanish "once" is eleven times more than "once".
 2021-01-31, 09:30 Replies: 9 Views: 850 Posted By rudy235 12 12 2121 @12:21 GMT (I meant Titanic 24-tuplet) 12 12 2121 @12:21 GMT (I meant Titanic 24-tuplet)
 2021-01-31, 09:26 Replies: 9 Views: 850 Posted By rudy235 The description given By Sergei is very concise. ... The description given By Sergei is very concise. Why don't you present it to UTM with that description? Ahh! Congratulations BTW.
 Forum: Lounge 2020-12-28, 19:17 Replies: 1,722 Views: 156,081 Posted By rudy235 ARMANDO MANZANERO LEGENDARY Mexican singer and... ARMANDO MANZANERO LEGENDARY Mexican singer and composer (https://www.cnn.com/2020/12/28/entertainment/armando-manzanero-death-scli-intl/index.html).
 Forum: Lounge 2020-12-13, 23:07 Replies: 1,722 Views: 156,081 Posted By rudy235 https://thehill.com/blogs/in-the-know/in-the-know/... https://thehill.com/blogs/in-the-know/in-the-know/530037-legendary-spy-novelist-john-le-carre-dead-at-89 Yup, you beat me to the punch!!
 Forum: Lounge 2020-12-03, 06:48 Replies: 1,722 Views: 156,081 Posted By rudy235 COVID-19 COVID-19
 Forum: Science & Technology 2020-11-24, 16:17 Replies: 70 Views: 6,604 Posted By rudy235 305 metres aka 1000 feet. 305 metres aka 1000 feet.
 Forum: Science & Technology 2020-11-24, 13:42 Replies: 70 Views: 6,604 Posted By rudy235 Found this. Arecibo observatory supporters ask... Found this. Arecibo observatory supporters ask White House to help save damaged radio telescope https://www.space.com/arecibo-observatory-supporters-petitioning-white-house
 Forum: Science & Technology 2020-11-23, 21:09 Replies: 70 Views: 6,604 Posted By rudy235 I do not see a way this could be repaired. They... I do not see a way this could be repaired. They dropped the ball (no pun intended) when on August 10 the first cable snapped. I hate to engage in political opinion but the current administration...
 Forum: Science & Technology 2020-11-23, 04:57 Replies: 70 Views: 6,604 Posted By rudy235 How many of this forum have actually visited the... How many of this forum have actually visited the Arecibo Radio Telescope? I was there in November 2013.
 Forum: Data 2020-10-24, 23:17 Replies: 3,384 Views: 268,987 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: 1,743 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: 34 Views: 23,634 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: 14,310 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: 243 Views: 41,847 Posted By rudy235 Well, 101 happens to be prime. Well, 101 happens to be prime.
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