# Express each of the following numbers as the sum of three odd primes:

# (a) 21 (b) 31 (c) 53 (d) 61

Prime numbers are the numbers that have only two factors, that are, 1 and the number itself

## Answer: The numbers expressed as the sum of three odd primes are as follows: (a) 3 + 7 + 11 (b) 3 + 11 + 17 (c) 13 + 17 + 23 (d) 19 + 29 + 13

The prime numbers which are odd numbers are known as odd primes

## Explanation:

Here are some odd primes listed such as: 3, 7, 11, 17, 19, etc.

(a) 21 can be written as 3 + 7 + 11

(b) 31 can be written as 3 + 11 + 17

(c) 53 can be written as 13 + 17 + 23

(d) 61 can be written as 19 + 29 + 13