Calculating integers from their prime factor expressions

12 questions

1. Fill in the missing word: Integers greater than 1 are either composite or ___.
2. Which of the following shows that 77 is a composite number?
3. What is the missing number in the first step in the process to find prime factors of 75? 75 = 3 \times ___
4. What is the missing product in this process to find prime factors of 75?
5. Given 120 = 2^3\times3\times5, which of the following equals 360?
6. Given 120 = 2^3\times3\times5, which of the following equals 60?
7. A square number is the product of two ___ integers.
8. Write 2^2\times3\times5 as an integer.
9. True or false? 2^3\times3\times5 is an even integer.
10. True or false? 3\times5^2 is a multiple of 10
11. Which of the following is not a multiple of 6?
12. Which of the following is a square number?

License: OGL