21
Also known as the number 21, 1*21, 21*1, twenty-one, twenty one, ㉑
numero naturale
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.
Article · Italiano
Ventuno (cf. latino viginti unus, greco εἷς καὶ εἴκοσι) è il numero naturale dopo il 20 e prima del 22.
Abstract from DBpedia / Wikipedia · CC BY-SA