All the common multiples of a set of numbers are the multiples of their lowest common multiple:
lcm(5, 8, 10) = 40
→ first three common multiples are 40, 80, 120
230 460 690
lcm(45, 10) = 90 → the first three common multiples are the first three multiple of their lcm → 90, 180, 270.
10, 20, 30 The common multiples of 5 and 10 are multiples of their lowest common multiple. The lcm of 5 and 10, is 10. Thus the first three common multiples are 10, 20, 30.
30, 60, 90
60, 120, 180
The LCM of the given three numbers is 20
20 is the smallest common multiple of 4, 5, and 10, and thus the first. Thus, the first three common multiples of 4, 5, and 10 are 20, 40 and 60.
30
The common multiple refers to a multiple that is COMMON to two or more numbers. You have only one number in the question!
Multiply them together.
The Least Common Multiple (LCM) for 2 3 10 is 30.
The first one is 5x1=5 the next is 5x2=10 The number itself is always the first multiple. This is important because when finding a common multiple, one needs to consider the number itself as a multiple Example: Find the least common multiple of 5 and 10, the answer is 10 since it is a multiple of itself and 5xs2 is 10.