Question

Find the lcm of 19,29,3
5,39

Answer 1

19 = 1 * 19

29 = 1 * 29

3 = 1 * 3

5 = 1 * 5

39 = 1*3*13

lcm =  19*29*5*3*13*3

= 322335

we have not taken 3 common because we have to find lcm of all the 5 nos. and 3 is common in only 2 nos. and they are 3 and 39.