Prime or No Prime!

by **anonymus** on Thu Jul 23, 2009 7:09 am

Hi Guys, I thought i might as well start a new game here as well, it goes like this, i post a number and you guys say if its a prime or not. The one who gets it right posts a new number and we do our factorizations and say if its a prime or not and so on..
So lets get our prime on bitches!

I'll start easy to get it rolling; 61

EDIT; a prime number is a number not dividable by anything but itself or 1 to get a whole number..

by **anonymus** on Thu Jul 23, 2009 7:09 am

61 is a prime!

by **anonymus** on Thu Jul 23, 2009 7:12 am

anonymus wrote:61 is a prime!

thats correct anon 61 is a prime, so you get to choose a new one.. (to avoid multipost i will just post my new number in this one)

oh! thank you very much good sir, well my new number is; 751 but is it a prime?

by **BoganGod** on Thu Jul 23, 2009 12:16 pm

Prime

by **anonymus** on Thu Jul 23, 2009 12:37 pm

BoganGod wrote:Prime

that is correct Bogan 751 is a prime number. fee free to post a new number and we will see f its a prime or not

by **BoganGod** on Thu Jul 23, 2009 12:45 pm

by **anonymus** on Thu Jul 23, 2009 12:58 pm

7 is a prime

by **slaggan** on Thu Jul 23, 2009 2:53 pm

RTFM anon

, your turn to post a new prime

by **-Maximus-** on Thu Jul 23, 2009 4:02 pm

Here we go:
15485863

by **anonymus** on Thu Jul 23, 2009 4:06 pm

-Maximus- wrote:Here we go:
15485863

bloody hell mate;) do you know how long it would take to factorise that number?
well it took about 3 seconds to google it and 15485863 is actually the 1000000th primenumber;)
cudos
but maybe we should limit it to the first 500 or 1000 primes, but hell you can google those as well.. i hate the internet

but yeah in short 15485863 is a prime

source; http://primes.utm.edu/

by **anonymus** on Thu Jul 23, 2009 4:11 pm

slaggan wrote:RTFM anon , your turn to post a new prime

hold your horses you old slag i had to spend my last mone on some thai-food and didnt have the time..
but ok lets give thisone a go in the opposite style of previous poster;)

2

by **-Maximus-** on Thu Jul 23, 2009 4:14 pm

lol, well heck, stupid google is cheating, I have a formula to calculate mine!

by **anonymus** on Thu Jul 23, 2009 4:18 pm

-Maximus- wrote:lol, well heck, stupid google is cheating, I have a formula to calculate mine!

yeah its cheating allright, but i wasnt sitting down working my way up to the millionth prime

how does your formula look? not ereally a big math-guy even though i find it interesting..

by **-Maximus-** on Thu Jul 23, 2009 4:20 pm

lol you should google prime number formulas, you will find plenty......i just knew that one from heart

by **anonymus** on Thu Jul 23, 2009 4:34 pm

-Maximus- wrote:lol you should google prime number formulas, you will find plenty......i just knew that one from heart

ok, thing is they dont work in reverse though.. so finding out if the 1000000th prime is a prime or not is a lot of trial and error or am i wrong?

by **MrPanzerGeneral** on Fri Jul 24, 2009 3:21 am

Yes.
I completely agree with you.
You are indeed wrong.

No trial and error involved.

5.

(coincidently: the # number of Village People still alive today )

by **BoganGod** on Fri Jul 24, 2009 6:12 am

Working out prime numbers is pretty simple, so is the maths version of memorizing boring poetry by talentless long winded gits. Your other thread is more interesting anonymus.