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Q.

Prime factorization of 120 using factor tree method

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a

2x2x2x3x5

b

2x2x2x3x2

c

2x2x3x3x5

d

NONE

answer is A.

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Detailed Solution

The number 120 is a composite number because 120 can be divided by 1, by itself and at least by 2, 3 and 5. So, it is possible to draw its prime tree. The prime factorization of 120 =2*2*2*3*5. See its prime factors tree below.

Prime Factorization of 120 with a Factor Tree - MathOnDemand.com
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