[URL]https://primes.utm.edu/primes/page.php?id=126564[/URL]


88444 · 5[SUP]2799269[/SUP] - 1

1956611 digits Jun 2019

It is the largest SR5 prime and the third largest prime of 2019

it eliminates k=88444 from the base 5 Reisel Problem.

And another hit :)


[url]https://primes.utm.edu/primes/page.php?id=126585[/url]


322498 · 52800819 - 1 is prime :)

[QUOTE=pepi37;520028]
322498 · 52800819 (sic) - 1 is prime :)[/QUOTE]
That is divisible by 7 :razz:

Pepi,


Please use the exponentiation symbol. Thanks.

[QUOTE=gd_barnes;520164]Pepi,


Please use the exponentiation symbol. Thanks.[/QUOTE]

I never fail to do that,

And new hit in SR5... prime will be verified soon :)


[url]https://primes.utm.edu/primes/page.php?id=130732[/url]

Apparently there is another one?

[url]https://primes.utm.edu/primes/page.php?id=130751[/url]

146264*5^2953282-1

And the third one of this month: 238694*5^2979422 - 1

[url]https://primes.utm.edu/primes/page.php?id=130771[/url]

/JeppeSN

Fourth one, 207494*5^3017502 - 1.

[url]https://primes.utm.edu/primes/page.php?id=130783[/url]

/JeppeSN

Seems this was not reported here yet:

[url='https://primes.utm.edu/primes/page.php?id=130869']118568 * 5^3112069+1[/url] is prime, found on 2020-05-01

[COLOR="Red"]Moderators: I am not too sure if this is the right (or best) thread to post this but please move it if required.[/COLOR]

A new Sierpinski/Riesel Base 5 has been found (verification pending)

#23 in the list currently 3622 · 5[SUP]7558139[/SUP] - 1
5282917 Digits L4965 (Ryan Propper) Feb 2022

This eliminates the smallest k in the list =3622 Riesel base 5

Congratulations to Ryan Propper.