Question

find the lcm of the following numbers by prime factorization 12 and 18

Answer 1

2/12
2/6
3/3
1

2/18
3/9
3/3
1

Factors common 2*3=6
LCM = 6

Answer 2

2|12
3|6
2|2
| 1
12 = 2*2*3
2|18
3|9
|3
18 = 2*3*3
HCF = 2*3
= 6
LCM = 2*3*6
= 36
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