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Is number '71113+13+13*2' a composite number?

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Is number '7*11*13+13+13*2' a composite number?

Posted by Ayush Sharma 6 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Yashomani Maurya 6 years, 11 months ago

Yes it is. A composite number is a one which has at least 1 factor other than 1 and itself. Since the given number,i.e.,13(7x11+1+2) is divisible by 13,hence it is a composite number(by definition). Hope it help you. #THANKS!

Riya ? 6 years, 11 months ago

Yes it is a composite number because it is product of primes. As 7×11×13+13+13×2=13(7×11×1+1+1×2) =13(77+1+2)=13(80)=13×2×2×2×2×5

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