Question

find LCM of 42 and 91 by prime factorization method​

Answer 1

Answer:

Find the prime factorization of 42

42 = 2 × 3 × 7

Find the prime factorization of 91

91 = 7 × 13

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 2 × 3 × 7 × 13

LCM = 546

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Answer 2

Answer:

42=2×3×7

Step-by-step explanation:

91=7×13

LCM=2×3×7×13

LCM=546