Because it is divisible by 2. A Prime number can ONLY be divided by 1 and itself.
68 is not prime. 68 = 2 * 2 * 17
Composite
No, it is not a prime number.
Composite
68 is composite and 79 is prime
68 is a Composite Number.
17 is a prime number but 68 is Composite.
68 is a composite number because it has more than two factors and it is not a prime or a square number
71 is prime.
39 is not a prime number because it has four factors: 1,3,13,39 and because prime number are numbers who has 2 factors.
The sum of the prime numbers 2, 5, and 61 is 68.
No, it is composite.