let p be a prime number . if n = 8 p , how many distinct even divisors does n have ?
"the correct answer is d . there are two : 2 and 2 p . 8 p = 2 * 2 * 2 p = ( 2 * 2 ) * 2 p . since we care only about distinct divisors , we ignore the fact that 2 appears three times ."
add(divide(const_1, const_2), subtract(divide(8, const_2), const_2))