Question: is 22 prime or not?
Answer: For 22, the answer is: No, 22 is not a prime number. The list of all positive divisors (i.e., the list of all integers that divide 22) is as follows: 1, 2, 11, 22. For 22 to be a prime number, it would have been required that 22 has only two divisors, i.e., itself and 1.