Question

explain why 7× 5× 3 ×2× 3 is a composite number​

Answer 1

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The number have more than two factors called composite number.

$= 7 \times 5 \times 3 \times 2 \times 2 \\ \\ = 3(7 \times 5 \times 2) \\ \\ = 3 \times 70$

Any number have 1 as factor.

$= 3 \times 70 \times 1$

Hence 7 × 5 × 3 × 2 × 3 have more than two factors therefore it is composite number.

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Answer 2

Hey Ma8 ,

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7 × 5 × 3 × 2 × 3 = 630

1 , 2 , 3 , 5 , 7 is a multiple of 630 hence it have more than 2 multiples means it is composite number .

composite number = which number have more than 2 multiples is called as composite number

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