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What is the HCF of n and n + 1 where n is a natural number?
Question

What is the HCF of n and n + 1 where n is a natural number?

A.

3

B.

2

C.

0

D.

1

Correct option is D

Given:

Two consecutive natural numbers: n and n + 1.

Concept Used:
The HCF (Highest Common Factor) of two consecutive integers is always 1, as they have no common divisors other than 1.

Solution:
Since n and n + 1 are consecutive, they are co-prime.
So, their HCF is 1.

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