6 is a common multiple of 2 and 3...so Ken is correct
think of multiples like multiplication tables 2 * 1 = 2 2 * 2 = 4 2 * 3 = 6 so 2,4,and 6 are multiples of 2 same with 3.. 3 * 1 = 3 3 * 2 = 6 3 * 3 = 9 so 3,6, and 9 are multiples of 3 so 6 is a common multiple of 2 and 3.
factors...they are what can be divided into a number... 6 has factors of 2 and 3....because they both go into 6 evenly but 6 is not a factor of 2 or 3 because 6 wont go into them evenly
