First 2 digit prime and composite number is 11 and 10

First find the largest and smallest 3 digit number and then take their difference

Numbers with three or more factors are known as " Composite Numbers"

Composite numbers are those which has more than two factors.

1 is neither Prime nor Composite.

Number which has exactly two factors are known as " Prime numbers"

Prime numbers are numbers that has only 2 factors.

Check if any of the pairs have any number in common

First 3-digit composite number-100

First 2-digit composite number-10

HCF of any two prime numbers is always 1.

1 is neither composit nor prime number.