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Common prime factors of 36, 60 and 72 are a) 2x 2 b) 2x3 c) 3x3 d) 3x2

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in Triangles by (15 points)

Common prime factors of 36, 60 and 72 are

a) 2x 2 b) 2x3 c) 3x3 d) 3x2

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2 Answers

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by (24.8k points)

Prime factors of 36 are 2 × 2 × 3 × 3

Prime factors of 60 are 2 × 2 × 3 × 5

Prime factors of 72 are 2 × 2 × 2 × 3 × 3

∴ Common prime factors are 2 × 2 × 3

+3 votes
by (1.5k points)

The factors of these numbers are 

36 = 2x2x3x3

60 = 2x2x3x5

72 = 2x2x2x3x3

Hence among these, option (D) 3x2 is the correct answer.

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