I'm on vacation!
 

I shall return in 2 weeks. Contact Scott with any server issues. Find a prime while I'm gone!

[QUOTE=Prime95;131164]I shall return in 2 weeks. Contact Scott with any server issues. Find a prime while I'm gone![/QUOTE]

Enjoy your vacation, George! Regarding your last request: OK, let's see ... 17.

And don't anyone even try to horn in on the credit for that one - I found it first. [Oh sure, Fermat [i]thought[/i] he discovered it ... but he thought 2[sup]32[/sup]+1 was prime, too - sorry, Pierre, no credit for lucky guesses around here. Go cry on the shoulder of your buddy in lucky-guessing, Mr. Mersenne. He was at least "1 for 3", compared to your "5 for oo."]

I'm in Newark - between flights.

Surely, you can do better than 17. Why just off the top of my head I think 41 is a prime. Beat that :)

How 'bout 385*2^401771-1?

[URL="http://geekz.co.uk/schneierfacts/fact/181"]Ahem[/URL]

[QUOTE=Prime95;131237]I'm in Newark - between flights.[/quote]
I think that's the only reason anyone is ever in Newark - waiting for a plane to get the heck outta Newark. "It's a lot like Gary, IN - only further East and even more mob-controlled...". But I'll be merciful and spare you my "Noah love for New Ark" joke.

[quote]Surely, you can do better than 17. Why just off the top of my head I think 41 is a prime. Beat that :)[/QUOTE]
Hah, you dare challenge my numerisistical abilities? Why, I can not only beat that, but I can work in a shameless plug for my (in)famous "Brun-Hilda and her twin prime sister Inga" cocktail-party-killer joke and the legendary "Subprime Mortgouge Market Meltdown" thread all in one go - framing the answer in the form of a [i]Jeopardy![/i]-style question:

[i]What is "today's opening price for Lehman Brothers, rounded to the nearest plummeting dollar?"[/i]

Your measly 41 just got downgraded to "subprime" status...wonder if there's a Fed bailout in the works for that?

I think 61 is prime, but I could be wrong.

[quote=ixfd64;131260]I think 61 is prime, but I could be wrong.[/quote]
From Pari/GP:
[code]
? isprime(61)
%1 = 1
[/code]
(For those of you who have never used Pari/GP before, that means it's prime. :smile:)

101 is prime
876817 is prime
except for the NPLB prime that wasnt in decimal people dont know many high primes

[quote=henryzz;131271]101 is prime
876817 is prime
except for the NPLB prime that wasnt in decimal people dont know many high primes[/quote][CODE]11111111111111111
1111111111111111111
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
[/CODE]
are all primes. There's another repunit prime but I haven't yet memorized it so didn't include it in the list above.


Paul

[QUOTE=ixfd64;131260]I think 61 is prime, but I could be wrong.[/QUOTE]

Alas, it factors as 7*7.

You are using octal, right?

[BTW, my base-8 friend, perhaps you should consider changing your UID to "ixfd52" - it's a well-known and regrettable fact that most mersenneforumites are decimal fetishists.]