Problem 2492. Factorions: Numbers that equal the sum of the factorials of their digits

From Wikipedia: A factorion is a natural number that equals the sum of the factorials of its decimal digits

For example:

2!=2

1!+4!+5!=145

Write a function that returns true if a number is a factorion and false otherwise.

Assume all numbers are of base 10.

Solve

Solution Stats

68.0% Correct | 32.0% Incorrect
Last Solution submitted on Jan 07, 2026

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers81

Suggested Problems

More from this Author9

Problem Tags

factorial factorion

Community Treasure Hunt

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

Start Hunting!