triangular number
Word Rarity
Rare
Frequency: Zipf frequency 3.42 in modern English
21
Scrabble Score
16
Letters
5
Syllables
11
Unique Chars
Meaning
noun
Any integer that is the sum of n natural numbers from 1 to n.
Example Sentences
- "Ten is a triangular number being the sum of 1, 2, 3, and 4."
Inflected Forms
Synonyms
triangle number
termial