Prime or No Prime!

[anonymus]

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..

[anonymus]

61 is a prime!

[anonymus]

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?

[BoganGod]

Prime

[anonymus]

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

[BoganGod]

7

[anonymus]

7 is a prime

[slaggan]

RTFM anon , your turn to post a new prime

[-Maximus-]

Here we go:
15485863

[anonymus]

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/

[anonymus]

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

[-Maximus-]

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

[anonymus]

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..

[-Maximus-]

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

[anonymus]

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?

[MrPanzerGeneral]

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 )

[BoganGod]

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.

[AceArtemis]

5 is a prime.

New number: 1

[anonymus]

5 is a prime.

New number: 1

incidently 1 is the number of village people mrpanzergeneral hasnt been shall we sayt "carnal" with!

[Caymanmew]

is this prime

-4358725873953871538715318797310

[colton24]

more than likely no how bout this one? 99

[pancakemix]

no

654321

[a.sub]

5 is a prime.

New number: 1

1 is not prime as it has only 1 factor, a prime number is defined as having exactly 2

definition excerpt from wiki

In mathematics, a prime number (or a prime) is a natural number which has exactly two distinct natural number divisors: 1 and itself. The first twenty-five prime numbers are:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.[1]

An infinitude of prime numbers exists, as demonstrated by Euclid around 300 BC.[2] The number 1 is by definition not a prime number. The fundamental theorem of arithmetic establishes the central role of primes in number theory: any nonzero natural number n can be factored into primes, written as a product of primes or powers of primes. Moreover, this factorization is unique except for a possible reordering of the factors.

is this prime

-4358725873953871538715318797310

ends in a 0, so no

no

654321

the sum of the numbers is 21 which is divisible by 3, so no

my turn 9175319357135913751395139517359379