Question: is 11 a factor of 30?
Answer: Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30. Factors of 31: 1, 31. Factors of 32: 1, 2, 4, 8, 16, 32. Factors of 33: 1, 3, 11, 33.