Art of Problem Solving
AoPS Online
Math texts, online classes, and more
for students in grades 5-12.
Visit AoPS Online ‚
Books for Grades 5-12 Online Courses
Beast Academy
Engaging math books and online learning
for students ages 6-13.
Visit Beast Academy ‚
Books for Ages 6-13 Beast Academy Online
AoPS Academy
Small live classes for advanced math
and language arts learners in grades 2-12.
Visit AoPS Academy ‚
Find a Physical Campus Visit the Virtual Campus

Deficient number

Revision as of 18:07, 8 February 2018 by Richie123 (talk | contribs)

A Deficient number is a number $n$ for which the sum of $n$'s proper factors is less than $n$. For example, 22 is deficient because its proper factors sum to 14 < 22.

This article is a stub. Help us out by expanding it.

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=Deficient_number&oldid=90672"