The new prime is already listed on the milestones page: [url]https://www.mersenne.org/report_milestones/[/url]

December 26, 2017 Prime M(77 232 917) discovered!
[ATTACH]17458[/ATTACH]

The Milestones Classic has also changed, but the TOTAL number of primes is still saying "49" . It should say "50"

Waiting for 18:00 UTC...

M(77232917) is prime!
 

[QUOTE=argilo;476196]The new prime is already listed on the milestones page: [url]https://www.mersenne.org/report_milestones/[/url][/QUOTE]

Hmm... well, that cat's out of the bag then. Actually, George was updating the various pages already and probably just did that one first.

Okay... he did mention he was half done updating pages and I could tidy up so I guess that's what he meant.

Alright... home page updated! Have at it!

The new prime is M(77232917)!

Edit: Try the new "known primes" page... I swapped out the scatter plot to use Google Charts instead of the old way it was drawing... I kind of like it. :)
[URL="https://www.mersenne.org/primes/"]Known Primes[/URL]

[QUOTE=Madpoo;476199]Hmm... well, that cat's out of the bag then. Actually, George was updating the various pages already and probably just did that one first.

Okay... he did mention he was half done updating pages and I could tidy up so I guess that's what he meant.

Alright... home page updated! Have at it!

The new prime is M(77232917)!

Edit: Try the new "known primes" page... I swapped out the scatter plot to use Google Charts instead of the old way it was drawing... I kind of like it. :)
[URL="https://www.mersenne.org/primes/"]Known Primes[/URL][/QUOTE]


[URL="https://www.mersenne.org/primes/press/M77232917.html"]Press release[/URL]

[QUOTE=Madpoo;476199]Alright... home page updated! Have at it![/QUOTE]

OK!!! :smile:

With the knowledge and agreement of George, I've submitted this to Slashdot. Any /.'ers can help get the story published by "upvoting" [URL="https://slashdot.org/submission/7766545/50th-known-mersenne-prime-found"]the submission[/URL].

Congratulations everyone!!! :tu:

[QUOTE=rudy235;476197]December 26, 2017 Prime M(77 232 917) discovered!
[ATTACH]17458[/ATTACH]

The Milestones Classic has also changed, but the TOTAL number of primes is still saying "49" . It should say "50"[/QUOTE]

Fixed.

Congratulations to Jon Pace and all :smile:

Trivia:

[CODE]
77232917 mod 2 == 1
77232917 mod 3 == 2
77232917 mod 4 == 1
77232917 mod 5 == 2
77232917 mod 6 == 5
77232917 mod 7 == 6
77232917 mod 8 == 5
77232917 mod 9 == 2
77232917 mod 10 == 7
77232917 mod 11 == 3
77232917 mod 12 == 5
77232917 mod 13 == 8
77232917 mod 14 == 13
77232917 mod 15 == 2
77232917 mod 16 == 5
77232917 mod 17 == 13
77232917 mod 18 == 11
77232917 mod 19 == 7

(2^77232917-1) mod 2 == 1
(2^77232917-1) mod 3 == 1
(2^77232917-1) mod 4 == 3
(2^77232917-1) mod 5 == 1
(2^77232917-1) mod 6 == 1
(2^77232917-1) mod 7 == 3
(2^77232917-1) mod 8 == 7
(2^77232917-1) mod 9 == 4
(2^77232917-1) mod 10 == 1
(2^77232917-1) mod 11 == 6
(2^77232917-1) mod 12 == 7
(2^77232917-1) mod 13 == 5
(2^77232917-1) mod 14 == 3
(2^77232917-1) mod 15 == 1
(2^77232917-1) mod 16 == 15
(2^77232917-1) mod 17 == 14
(2^77232917-1) mod 18 == 13
(2^77232917-1) mod 19 == 14

77232917-1 == 2^2 * 29 * 665801

2 is a generator for the multiplicative group modulo 77232917.

77232917+1 == 2 * 3 * 7^2 * 262697

previous prime 77232917 - 10 == 77232907
next prime 77232917 + 20 == 77232937
[/CODE]

/JeppeSN

I'd be curious to know how many others missed out on the glory by starting and subsequently abandoning an LL test on this exponent.

I recall a few MP's ago that the Exponent Status report listed all previous assignments.

[QUOTE=petrw1;476205]I'd be curious to know how many others missed out on the glory by starting and subsequently abandoning an LL test on this exponent.

I recall a few MP's ago that the Exponent Status report listed all previous assignments.[/QUOTE]
[URL="https://www.mersenne.org/report_exponent/?exp_lo=77232917&exp_hi=&full=1&ecmhist=1"]This link[/URL] currently doesn't show anyone else assigned this number as LL work, but maybe it still needs updating given that it was presumably masked until about half an hour ago.