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Prime Factors of 21
PRIME FACTORS OF 21
The prime factors of 21 are 3 and 7.
DESCRIPTIONS
Factor trees can be used to identify the prime factors of a number. The diagram below shows the factor tree of 21.
Prime factors are the numbers at the endpoints. For 21, these numbers are 3 and 7.
OTHER INFORMATION
The prime factorization of 21 is 3 × 7.
21 is a composite number.
INFORMATION
The solution and descriptions above are generated by the prime factors calculator. You can use the prime factors calculator to see the prime factors of other numbers.
PRIME FACTORS
A prime factor is a factor that is prime. Prime factors can be identified by checking the endpoints of a factor tree.
OTHER FEATURES OF 21
👉 Click here to see the factor tree of 21
👉 Click here to see the factors of 21
👉 Click here to see the prime factorization of 21
👉 Click here to see the upside-down division of 21
- Examples
- Basic Math
- Factors & Prime Numbers
- Prime Factor Examples
Prime Factors of 21