- Trending Categories
- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP

- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who

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

**(a)** 21

**(b)** 31

**(c)** 53

**(d)** 61

To do :

We have to express the given numbers as the sum of three odd primes.

Solution :

First few odd prime numbers are 3, 5, 7, 9, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

(a) Given number is 21.

$21=3+5+13$

21 expressed as the sum of three odd prime numbers is $3+5+13$.

(b) Given number is 31.

$31=3+5+23$

31 expressed as the sum of three odd prime numbers is $3+5+23$.

(c) Given number is 53.

$53=13+17+23$

53 expressed as the sum of three odd prime numbers is $13+17+23$.

(d) Given number is 61.

$61=7+13+41$

61 expressed as the sum of three odd prime numbers is $7+13+41$.

- Related Questions & Answers
- Express an odd number as sum of prime numbers in C++
- 8085 program to implement the following function (a*b) + (c*d)
- Show that the following grammar is LR (1) S → A a |b A c |B c | b B a A → d B → d
- Count ways to express a number as sum of consecutive numbers in C++
- Count ways to express ‘n’ as sum of odd integers in C++
- Count numbers which can be represented as sum of same parity primes in C++
- Count ways to express a number as sum of powers in C++
- Minimum numbers needed to express every integer below N as a sum in C++
- Minimum number of palindromes required to express N as a sum using C++.
- Find d to maximize the number of zeros in array c[] created as c[i] = d*a[i] + b[i] in C++
- Count of different ways to express N as the sum of 1, 3 and 4 in C++
- Find d to maximize the number of zeros in array c[] created as c[i] = d*a[i] + b[i] in Python
- Sum of square of first n odd numbers
- Squared sum of n odd numbers - JavaScript
- Finding the sum of minimum value in each row of a 2-D array using JavaScript
- PHP program to find the sum of odd numbers within a given range

Advertisements