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21

File:Squaring_the_Square_(minimum).png · Wikimedia Commons · See Wikimedia Commons

EntityQ712477· pop 106· linked from 451 articles

Also known as the number 21, 1*21, 21*1, twenty-one, twenty one,

natural number

AI overview

21 is a whole number that comes after 20 and before 22 in the sequence of counting numbers. It is the product of multiplying 3 by 7, making it a composite number with practical applications in mathematics and everyday contexts like telling time and measuring.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Image
Zlin skyscraper 01.jpg
Show 7 more facts
code
30
Unicode character
number of decimal digits
2
Commons category
21 (number)
numeric value
21
name in hiero markup
V20-V20-Z1
Sources (3)

via Wikidata · CC0

~6 min read

Article

← 20 21 22 23 24 25 26 27 28 29 → List of numbers Integers

← 0 10 20 30 40 50 60 70 80 90 →

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