CAT 2017 Number System Question (Medium)

Question

How many factors of 2 8 3 6 5 4 10 5 are multiples of 120?

Optima Learn · Accepted Answer

Understanding We need to find how many factors of 2 8 x 3 6 x 5 4 x 10 5 are multiples of 120. Analyzing First, rewrite 10 5 in terms of its prime factors 10 5 2 5 x 5 5. So the full number is 2 8 5 x 3 6 x 5 4 5 2 13 x 3 6 x 5 9. Also, 120 2 3 x 3 x 5. A factor of the full number is a multiple of 1

CAT 2017 Number System — Previous Year Question

CAT 2017

Quantitative

Number System

Medium

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