Question

find the lcm of 42, 63, 162 by prime factorization​

Answer 1

Answer:

Answer:1134
Step-by-step explanation:42=2×3×7
63=3×3×7
162=2×3^4
LCM= 2×3^4 ×7 = 14×81 = 1134

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Answer 2

Answer:

1134

Step-by-step explanation:

LCM = 1134

.

Prime Factorization of 42 is:

2 x 3 x 7  =>  21 x 31 x 71

Prime Factorization of 63 is:

3 x 3 x 7  =>  32 x 71

Prime Factorization of 162 is:

2 x 3 x 3 x 3 x 3  =>  21 x 34