Question

·
Find the LCM of the following numbers by prime factorisation method:
(a) 18, 24 and 36
(b) 60, 80 and 180
(c) 22 and 44​

Answer 1

Answer:

Lcm of 18,24 and 36

2/ 18,24,36

2/ 9,12,18

2/9,6,9

3/9,3,9

3/3,1,3

/1,1,1

Lcm=2x2x2x3x3= 72

b)The least common multiple of 60, 80 and 180 is 720.

c)Least common multiple (LCM) of 22 and 44 is 44.