# [Quiz] Math problems with answers on Least Common Multiple (LCM) and Highest Common Factor (HCF)

Welcome to Math Quiz number 14. These are grade 4 questions on Least Common Multiple (LCM) and Highest Common Factor (HCF). This tests basic factorization, division, and multiplication skills. Most of the questions have a single correct answer. But you must check all options before submitting. If you don’t select all options, your answer will be wrong. For the question(s) where you need to write the answer in the text box if you got the same numbers as given in the correct answer, your answer is correct. Please do not use any online tool for the answers. Have fun!!!

1.
Find the largest number that can divide both 10 and 15.

2.
Find the largest number that can divide 30, 36, and 54.

3.
Find the smallest number that is a multiple of 4, 6, and 8.

4.
Find the smallest number that is a multiple of 12, 16, and 18.

5.
What are the prime factors of 24?

6.
What are the prime factors of 96?

7.
Find the prime factorization of 56.

8.
Find the prime factorization of 65.

9.
Find the least common multiple (LCM) of 20, 24, and 30.

10.
Find the least common multiple (LCM) of 25, 50, and 75.

11.
Find the highest common factor (HCF) of 120, 124.

12.
Find the highest common factor (HCF) of 125, 150.