Dictionary.com

deficient number

noun Mathematics.

a positive number that is greater than the sum of all positive integers that are submultiples of it, as 10, which is greater than the sum of 1, 2, and 5.

QUIZZES

FOR LEXICAL ALIMENTATION, TAKE THIS WORD OF THE DAY QUIZ!

Nourish your vocabulary with a refresher on the words from the week of September 14–20, 2020!
Question 1 of 7
What does “blatherskite” mean?
a person given to voluble, empty talk.
an ancient Greek or Roman farce that depended for effect largely upon ludicrous actions and gestures.
a check whose amount has been raised by forgery before cashing.
TAKE THE QUIZ TO FIND OUT
Also called defective number.
Compare abundant number, perfect number.

Origin of deficient number

First recorded in 1720–30

Words nearby deficient number

deficiency account, deficiency disease, deficiency judgment, deficiency symptom, deficient, deficient number, deficit, deficit financing, deficit spending, de fide, defier
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020