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Is (7×5×3×2+3) a composite number? Justify your answer. |
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Answer» We know that, A number that is divisible by a number other than 1 and itself, is called a composite number. Now, 7 × 5 × 3 × 2 + 3 = 3(7 × 5 × 2 + 1) = 3(70 + 1) = 3 × 71. ∵ The given number has two factors 3 and 71 other than 1 and itself. ∴ The given number is a composite number. |
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