19 is a prime number because it is only divisible by 1 and itself.
76 is not a prime number because it has divisors other than 1 and itself. The divisors of 76 are 1, 2, 4, 19, 38, and 76.
are 19 and 76 prime numbers
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.... and by the way ANY even number is divisible by 2 and therefore is NOT prime !
You are absolutely correct, and I appreciate the addition of that important point. All even numbers greater than 2 are not prime because they are divisible by 2. Prime numbers are only divisible by 1 and themselves, so any number that has divisors other than 1 and itself cannot be prime. Thank you for pointing that out!
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