Problem 291. Triangle Numbers Below N

This is an offshoot of Cody Problem 5: Triangle Numbers.

Triangle numbers are the sums of successive integers. So 6 is a triangle number because

 6 = 1 + 2 + 3

which can be displayed in a triangular shape like so

      *
     * *
    * * *

Return all triangle numbers below N.

Solve

Solution Stats

36.28% Correct | 63.72% Incorrect
Last Solution submitted on May 06, 2025

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers229

Suggested Problems

More from this Author56

Problem Tags

below numbers triangle

Community Treasure Hunt

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

Start Hunting!