Multiples of 3 4 and 5?

To find common multiples of numbers, you would first identify their prime factors. However, in this case it is clear that there are no prime factors, as we have two prime numbers (3 and 5) and one number made up of uncommon prime factors (4 which is 2x2). So instead, the lowest common multiple will just be these three numbers multiplied together. 3x4x5=60. To find other common multiples of 3,4 and 5 we simply multiply 60 by an integer, such as 60x2, 60x3, 60x4, and so on. Thus the first few common multiples of 3, 4 and 5 are 60, 120, 180, 240, and 300