Write down the multiples for each. The Least Common Multiple is the least number which occurs in all of the list of multiplesMultiples of 22,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34Multiples of 33,6,9,12,15,18,21,24,27,30,33,36Multiples of 55,10,15,20,25,30,35,40The least number which appeared in all 3 multiples is 30, hence the L.C.M for 2,3 and 5 is 30