Step 1: List the multiples of 9. The first few multiples are 9, 18, 27, 36, 45, ...
Step 2: List the multiples of 15. The first few multiples are 15, 30, 45, 60, ...
Step 3: Look for the smallest number that appears in both lists of multiples. The common multiples are 45, ...
Step 4: Identify the smallest common multiple. The smallest common multiple is 45.
Step 5: Therefore, the LCM of 9 and 15 is 45.
Least Common Multiple (LCM) – The LCM of two numbers is the smallest positive integer that is divisible by both numbers.
Prime Factorization – Finding the LCM can involve breaking down numbers into their prime factors and using those to determine the smallest common multiple.