Dr Pooranmal and Ashfaq A Khan Solutions for Chapter: Factors and Multiples, Exercise 2: EXERCISE 4.2

Which number is an even prime?

Which number is the smallest odd prime?

A list consists of the following pairs of numbers $(51, 53); (55, 57); (59, 61); (63,65); (67, 69); (71, 73)$. Identify the pair/pairs that are primes.

A list consists of the following pairs of numbers $(51, 53); (55, 57); (59, 61); (63,65); (67, 69); (71, 73)$. Identify the pair/pairs that are composites.

Express the following number as the sum of twin primes:

$36$

Express the following number as the sum of twin primes:

Express the following number as the sum of twin primes:

Express the following number as the sum of twin primes: