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Question
The HCF of the smallest 2-digit number and the smallest composite number is ______.
Options
4
20
2
10
40
Solution
The HCF of the smallest 2-digit number and the smallest composite number is 2.
Explanation:
Smallest 2-digit no. = 10
Smallest composite no. = 4
Now, Prime factorization of 4 = 2 × 2
Prime factorization of 10 = 2 × 5
H.C.F (10, 4) = 2
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