Problem 52639. Determine whether a number is unprimeable

The number 204 is unprimeable because no single digit can be changed to make it prime. In contrast, the number 207 is not unprimeable because changing the first digit to 0, 1, 3, 6, or 9 or the second digit to 2, 5, or 7 would make it prime.
Write a function to determine whether the input number is unprimeable.

Solution Stats

53.13% Correct | 46.88% Incorrect
Last Solution submitted on May 02, 2023

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers14

Suggested Problems

More from this Author266

Problem Tags

Community Treasure Hunt

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

Start Hunting!