Question

Which of the following is the LCM of 36 and 72
a) 72 b) 108 c)36 d) 2

Answer 1

Answer:

the correct answer is 72

Step-by-step explanation

Answer 2

Answer:

The LCM or Least Common Multiple  of 36 and 72 is 72.

Step-by-step explanation:

1)  Find the prime factorization of 36

   36 = 2 × 2 × 3 × 3

2)  Find the prime factorization of 72

   72 = 2 × 2 × 2 × 3 × 3

3) Multiply each factor the greater number of times it occurs in steps 1) or 2) above to find the LCM:

LCM = 2 × 2 × 2 × 3 × 3

LCM = 72

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