Least common multiple (LCM)

      Error - Decimal point not allowed here
                    lcm(5,4,2)

Least Common Multiple is :

      20

Calculate Least Common Multiple for :

    5, 4 and 2

Factorize of the above numbers :

    5 = 5 
    4 = 22 
    2 = 2 

Build a prime factors table

    Number of times each prime factor
    appears in the factorization of :

Prime   Factor	Number   5	Number   4	Number   2	L.C.M    (max)
2	0	2	1	2
5	1	0	0	1

 LCM = 22 • 5

Least Common Multiple is :

      20