Multiple choice

The HCF of first $100$ natural numbers is?

  1. $2$
  2. $100$
  3. $1$
  4. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The first 100 natural numbers include 1. The HCF of any set of numbers including 1 is 1.

AI explanation

The first 100 natural numbers include both prime and composite numbers. Since 1 is the only number that divides all natural numbers without leaving a remainder, the highest common factor of the first 100 natural numbers is 1.