Question

Find the LCM of the following by the prime factor
(a) 12,42
(b) 45, 70,90
1. ion method:
18 by the prime factorization method:
(c) 36, 48, 60​

Answer 1

Answer:

12=2*2*3

42=2*7*3

So lcm=2*7*3*2=84 ANSWER

Step-by-step explanation:

For 45,70,90

45=5*3*3

70=5*7*2

90=5*3*3*2

So lcm=5*3*3*2*7=630 ANSWER