What's the Lowest Common Multiple (LCM) of 7 and 8?
write down the multiple of 7, n then 8. choose the one that's common and the least. :)
multiples of 7
multiples of 8
so the lcm, I.e. least common multiple of 7 and 8 is, 56.
They have no common factors apart from
Therefore they have no common factors apart from
The first time they will share a common multiple is with their own product.
Looking at their prime factors: