Table of Contents
Introduction to Factors of 21
The number 21 is the result of multiplying three consecutive prime numbers: 7, 11, and 13. This can be explained further by looking at the individual prime factors of 21.
The prime factors of 21 are:
7, 11, 13
These numbers can be multiplied together to get the prime factorization of 21:
7 x 11 x 13
This can also be written as:
21 = 7^2 x 11^1 x 13^0
Prime Factorization of 21
The prime factorization of 21 is 3 x 7.
Is 21 a Square Number or Not?
Yes, 21 is a square number.
Is 21 a Composite Number or Not?
Yes, 21 is a composite number.
Total Number of Factors of 21
The number of factors of 21 is 5.
Finding The Least Common Multiple of 21 And Another Number
The least common multiple of 21 and another number is 168.
