Inspired by the movie "1408", let's have a little bit of fun with the lucky number 13. Give an example of five (5) different four-digit numbers whose sum of the digits in its square equals to 13. For example, for a one-digit number, the square of 7 is 49; the sum of 4 and 9 is 13.
Solve

Solution Stats

29 Solutions

25 Solvers

Last Solution submitted on Jan 30, 2026

Last 200 Solutions

Solution Comments

Show comments

Problem Recent Solvers25

George Berken Pauli Huusari Riccardo G. Matthew Bolyard

Suggested Problems

More from this Author180

Problem Tags

Community Treasure Hunt

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

Start Hunting!