Is 24 a prime number? For 24, the answer is: No, 24 is not a prime number. The list of all positive divisors (i.e., the list of all integers that divide 24) is as follows: 1, 2, 3, 4, 6, 8, 12, 24. To be 24 a prime number, it would have been required that 24 has only two divisors, i.e., itself and 1.read more >>