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Old 2021-09-28, 00:25   #276
rudy235
 
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Quote:
Originally Posted by paulunderwood View Post
Congrats to James Winskill for the mega primorial prime: 3267113# - 1 (1,418,398 decimal digits).

Yes, in the last few days we have had two new categories of primes entering the megaprime territory. A Palindromic with 1,234,567 digits and this Primorial with 1,418,398 digits. The next one coming is probably the 3rd term of a Prime in A.P.

We now have close to 1,125 megaprimes

Last fiddled with by Dr Sardonicus on 2021-09-28 at 10:58 Reason: xingif posty
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Old 2021-09-28, 21:57   #277
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Quote:
Originally Posted by rudy235 View Post
...A Palindromic with 1,234,567 digits and ...
How about two of them?
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Old 2021-09-29, 14:25   #278
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Originally Posted by Batalov View Post
How about two of them?
You mean "two more"?

https://primes.utm.edu/primes/page.php?id=132766
https://primes.utm.edu/primes/page.php?id=132767

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Old 2021-10-16, 17:50   #279
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How difficult is to prove a primorial Prime?


3267113# - 1

Verification status (*): InProcess

Is still unproven. I would think that having the primorial +1 100% factored would make proving it a matter of a couple of says. A week in the worse case.
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Old 2021-10-16, 17:54   #280
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Quote:
Originally Posted by rudy235 View Post
How difficult is to prove a primorial Prime?


3267113# - 1

Verification status (*): InProcess

Is still unproven. I would think that having the primorial +1 100% factored would make proving it a matter of a couple of says. A week in the worse case.
Some numbers require proof attempts at increasing sizes of FFT.
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