Explain why ( 7 × 5 × 3 × 2 + 3 ) is a composite number?
= 3 (71)
as it has to factors 3 and 71 other than 1 and no. itself so its a composite no.
as it has to factors 3 and 71 other than 1 and no. itself so its a composite no.
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because product of it it is 213 which is divisible by 1,3,213 so it has 3 factors
thus it is a composite number
thus it is a composite number
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0
the answer is 213 and it is a composite number because it is divided by other nos. also and also by 1 & the no. itself.
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= 3 (7 x 5 x 2 + 1)