2.2.3 Factors and Multiples, PT3 Practice

Question 9:
Find the lowest common multiple (LCM) of 8, 12 and 15.

Solution:

Question 10:
Find the highest common factor (HCF) of 26, 52 and 156.

Solution:

Question 11:
Given that (m + 5) is the highest common factor of 81 and 108, find the value of m.

Solution: