Question

192 Prime or Composite

Answer 1

Err, what's the definition of prime number?

And then are ANY even numbers other than 2 ever prime?

Answer 2

composite - the only even prime number is 2

Answer 3

@jimmryrep: you gave it away!

Answer 4

yea

Answer 5

i need the answer

Answer 6

you've had the answer

Answer 7

so its prime?

Answer 8

@jimmyrep: and here's the problem.

@emmybear: what is the definition of a prime number?

Answer 9

hhmmm...

Answer 10

I'm guessing that you don't know. A prime number is a positive integer that is only divisible by itself or 1.

For example, 2 is prime, so is 3 and 5.

The number 6 is not prime because
6 = 2 x 3
and is therefore divisible by both 2 and 3.

10 is not prime, because 10 = 2 x 5

11 is prime

Getting the idea?

Answer 11

Now notice that every even number is divisible by 2
2 = 2 x 1
4 = 2 x 2
6 = 2 x 3
8 = 2 x 4
100 = 2 x 50
178 = 2 x 89
1,000,000 = 2 x 500,000

So NO even number except 2 is prime.

Answer 12

So is your number, 192, prime or not prime?