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Forum: Proth Prime Search 2021-12-02, 15:13
Replies: 13
Views: 19,500
Posted By rudy235
Thanks

Thanks
Forum: Proth Prime Search 2021-12-02, 07:28
Replies: 13
Views: 19,500
Posted By rudy235
Largest Prime in 3 Years. 6.4 Million Digits

If confirmed it will be the largest since Dec 2018

13 202705 · 221320516 + 1 6418121 L5181 Dec 2021
(Unverified because InProcess)

Congratulations to Pavel Atnashev and PrimeGrid
...
Forum: Conjectures 'R Us 2021-12-01, 15:57
Replies: 11
Views: 545
Posted By rudy235
I understand now. For the record I was merely...

I understand now. For the record I was merely stating what I wished for the whole community of Prime provers including PrimeGrid. I stand corrected.
Forum: Conjectures 'R Us 2021-12-01, 05:43
Replies: 11
Views: 545
Posted By rudy235
Hello: more than goals as such, this would be my...

Hello: more than goals as such, this would be my wish list.

A) Prime #1220 over 1,000,000 digits
B) Prime #210 over 2,000,000 digits
C) Prime #100 over 3,000,000 digits
D) At least 1 prime...
Forum: Conjectures 'R Us 2021-11-30, 23:42
Replies: 11
Views: 545
Posted By rudy235
Then I won't suggest anything. Sorry!

Then I won't suggest anything. Sorry!
Forum: MattcAnderson 2021-11-30, 01:24
Replies: 9
Views: 222
Posted By rudy235
Yes, of course, anyone would choose platinum over...

Yes, of course, anyone would choose platinum over lead and even over iron, I simply did not focus much in the "beautiful" aspect and chose one of the six metals known in antiquity, Au, Ag, Cu, Pb and...
Forum: MattcAnderson 2021-11-29, 23:13
Replies: 9
Views: 222
Posted By rudy235
Bronze is not a metal. It is actually an...

Bronze is not a metal.

It is actually an alloy made of about 7/8 parts of copper and 1 parts of tin. (weightwise)

Perhaps iron would be a better choice. (or lead)
Forum: Data 2021-11-29, 00:38
Replies: 3,483
Views: 313,374
Posted By rudy235
There are 27 DC under 59 million. There are 2...

There are 27 DC under 59 million. There are 2 distinct groups 7 of them assigned Oct/ Nov 2021 and 20 of them assigned on Dec 2020. These last will not be done until they are reassigned and most...
Forum: Lounge 2021-11-01, 22:56
Replies: 42
Views: 1,092
Posted By rudy235
Just like the Real Estate Mantra is: Location,...

Just like the Real Estate Mantra is: Location, location, location.

Here in Forums (or Fora) it is: Context, context, context.:smile:
Forum: Lounge 2021-11-01, 18:24
Replies: 42
Views: 1,092
Posted By rudy235
26048 Determining the North South Axis ...

26048

Determining the North South Axis
Disregarding the 5.1% inclination of the moon orbit plane to the ecliptic plane wouldn't following the Sun path give you the easterly direction and thus...
Forum: Lounge 2021-10-31, 21:59
Replies: 42
Views: 1,092
Posted By rudy235
But the moon has no atmosphere and the only glare...

But the moon has no atmosphere and the only glare you have to contend is the reflection of the landscape. it is not the lansdscape's reflection that prevents you from seeing stars during daytime as...
Forum: Lounge 2021-10-31, 20:37
Replies: 42
Views: 1,092
Posted By rudy235
Wouldn't a 1 meter long metal or wooden tube of ...

Wouldn't a 1 meter long metal or wooden tube of 4 centimeter diameter (40 inches x 11/2 inches ø) be enough to avoid the glare? (Even better if it were in a binocular version.)
Forum: Lounge 2021-10-31, 16:42
Replies: 42
Views: 1,092
Posted By rudy235
All are excellent replies and there is a lot to...

All are excellent replies and there is a lot to process.

Yes definitely.

Moons and Keplerian Laws. At least the Second Law would become apparent from observing the 4 visible moons of Jupiter....
Forum: Lounge 2021-10-31, 03:40
Replies: 42
Views: 1,092
Posted By rudy235
Thanks for your reply. You are referencing to...

Thanks for your reply.
You are referencing to the "wobble of the Earth" every 27.33 days. However, it took The genius of Newton and Pierre Laplace in the 17th and 18th Centuries to estimate its...
Forum: Lounge 2021-10-30, 22:54
Replies: 42
Views: 1,092
Posted By rudy235
Thought experiment: Lunarians

Suppose that there exists a civilization on the far side of the Moon. It is a huge empire of roughly 8 million square kilometers (more or less the size of Australia)

This empire is centered at...
Forum: Riesel Prime Search 2021-10-19, 01:14
Replies: 290
Views: 51,794
Posted By rudy235
After 20 days (10/17/21) it was proven prime.

After 20 days (10/17/21) it was proven prime.
Forum: Riesel Prime Search 2021-10-16, 17:50
Replies: 290
Views: 51,794
Posted By rudy235
How difficult is to prove a primorial Prime? ...

How difficult is to prove a primorial Prime?


3267113# - 1 (https://primes.utm.edu/primes/page.php?id=132758)

Verification status (*): InProcess

Is still unproven. I would think that...
Forum: Riesel Prime Search 2021-10-15, 15:41
Replies: 1,976
Views: 227,173
Posted By rudy235
.....................HERE IS THE OFFICIAL...

.....................HERE IS THE OFFICIAL ANNOUNCEMENT

PrimeGrid’s
321 Prime Search


On 6 September 2021, 07:16:28 UTC, PrimeGrid’s 321 Prime Search found another Mega Prime:

3*217748034-1
Forum: Lounge 2021-09-28, 01:03
Replies: 1
Views: 265
Posted By rudy235
A character in the new Apple+ TV series...

A character in the new Apple+ TV series Foundation a young character named Gaal Dornick recites primes to regain composure and achieve inner peace..

She goes like this. 819,250,973 ... 819,250,997...
Forum: Riesel Prime Search 2021-09-28, 00:25
Replies: 290
Views: 51,794
Posted By rudy235
Yes, in the last few days we have had two new...

Yes, in the last few days we have had two new categories of primes entering the megaprime territory. A Palindromic (https://en.wikipedia.org/wiki/Palindromic_prime) with 1,234,567 digits and this...
Forum: Riesel Prime Search 2021-09-25, 01:14
Replies: 290
Views: 51,794
Posted By rudy235
This is an incredible result! ...

This is an incredible result! https://primes.utm.edu/primes/page.php?id=132738



But now we have two different record arithmetic progression of 3 elements of 884,748 and 807,954 digits. the...
Forum: Riesel Prime Search 2021-09-15, 18:17
Replies: 290
Views: 51,794
Posted By rudy235
Wow! A megaprime palindrome. And one with more...

Wow! A megaprime palindrome. And one with more than twice the digits than the previous one!

I have to see it to believe it!:philmoore:
Forum: Riesel Prime Search 2021-09-11, 16:50
Replies: 290
Views: 51,794
Posted By rudy235
Of course all repunits are “palindromes” per se,...

Of course all repunits are “palindromes” per se, but in practical terms when a prime is a Mersenne, a Generalized Mersenne ( to other bases ), repunits, generalized repunits, they are not counted as...
Forum: Riesel Prime Search 2021-09-08, 04:27
Replies: 1,976
Views: 227,173
Posted By rudy235
Both forms of numbers exist, The 3*2k - 1 are...

Both forms of numbers exist,
The 3*2k - 1 are called Thabit primes and there are 64 of them known. https://oeis.org/A002235/b002235.txt

Those of the Form 3*2k + 1 are called Thabit of the...
Forum: Riesel Prime Search 2021-09-07, 18:27
Replies: 1,976
Views: 227,173
Posted By rudy235
The largest prime for 2021 and 2nd largest since...

The largest prime for 2021 and 2nd largest since Christmas 2018 has been discovered.

It is a 3 2 1 Prime i.e. 3*2k-1 The prime is 3*217748034 -1 and has 5342692 digits.

This is the largest...
Showing results 1 to 25 of 1000

 
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