Question

least common multiple of 3,4,,5​

Answer 1

$\huge\mathfrak\pink{answer}$

3and5 are already prime, but we should notice that 3,4and5 do not have any common factors at all. The LCM must be divisible by all them, so there needs to be a 3 , a 4 and a 5 .

Answer 2

The answer is 60 :)

Hope, you get your answer.