Problem 14. Find the numeric mean of the prime numbers in a matrix.

Created by Cody Team
Appears in Cody Problems in Japanese

Difficulty:Rate

Solve Later
Add To GroupÃ‚

There will always be at least one prime in the matrix.

Example:

 Input  in = [ 8 3
               5 9 ]
 Output out is 4 or (3+5)/2

Solve

Solution Stats

20950 Solutions
8990 Solvers

Last Solution submitted on Mar 10, 2025

Last 200 Solutions

Problem Comments

12 Comments

12 Comments

Show 9 older comments

Mehran Akbari on 11 Feb 2020

The question topic is hard to understand.

Suraj Kumar on 26 Jul 2020

Good Problem for beginners.

Leo S on 30 Nov 2020

What is wrong with

a = find( isprime( in))
out = mean( in( a)) ?

It works perfectly in my own MATLAB environment

Solution Comments

Show comments

Problem Recent Solvers8990

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 14. Find the numeric mean of the prime numbers in a matrix.

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers8990

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Problem 14. Find the numeric mean of the prime numbers in a matrix.

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers8990

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Players