Question: 50 is divisible by which number?
Answer: For 50, the answer is: No, 50 is not a prime number. The list of all positive divisors (i.e., the list of all integers that divide 50) is as follows: 1, 2, 5, 10, 25, 50. For 50 to be a prime number, it would have been required that 50 has only two divisors, i.e., itself and 1.