Question: 318 is a prime or not?
Answer: For 318, the answer is: No, 318 is not a prime number. The list of all positive divisors (i.e., the list of all integers that divide 318) is as follows: 1, 2, 3, 6, 53, 106, 159, 318. For 318 to be a prime number, it would have been required that 318 has only two divisors, i.e., itself and 1.