This includes three Google Form Quizzes and three printable PDF quizzes you can use to check your students’ skill in finding the prime factors of numbers and the greatest common factor of two numbers. The prime factors of numbers are the prime numbers that can be multiplied to make a nonprime number. For example, the prime factors of 132 are 2, 2, 3, and 11. That is because 2 x 2 x 3 x 11 = 132, and 2, 3, and 11 are all prime; they cannot be divided further. Divisibility rules let us see wheth