the product z of two prime numbers is between 16 and 40 . if one of the prime numbers is greater than 2 but less than 6 and the other is greater than 12 but less than 30 then what is z ?
"the smallest possible product is 39 which is 3 * 13 . all other products are too big . the answer is e ."
multiply(subtract(16, const_4), const_3)