6. Find the HCF of the smallest prime number and the smallest composite
number.
[CBSE 2018]
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Prime number – A prime number is a number which has exactly two factors i.e. it can be divided by only the number ‘1’ and itself.
The smallest prime number is = 2
composite number – A composite number has more than two factors, which means apart from getting divided by number 1 and itself, it can also be divided by at least one integer or number. We don’t consider the number ‘1’ as a composite number.
The smallest composite number is = 4
2 is the factor of 4
∴ H.C.F of the smallest prime number and the smallest composite number is 2.
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