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Prime Factors of 81

**PRIME FACTORS OF 81**

The only prime factor of **81** is **3**.

**DESCRIPTIONS**

Factor trees can be used to identify the prime factors of a number. The diagram below shows the factor tree of **81**.

Prime factors are the numbers at the endpoints. For **81**, the only factor is **3**.

**OTHER INFORMATION**

The prime factorization of

**81**is**3**.^{4}**81**is a composite number.

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.

A prime factor is a factor that is prime. Prime factors can be identified by checking the endpoints of a factor tree.

👉 Click here to see the **factor tree** of 81

👉 Click here to see the **factors** of 81

👉 Click here to see the **prime factorization** of 81

👉 Click here to see the **upside-down division** of 81

- Examples
- Basic Math
- Factors & Prime Numbers
- Prime Factor Examples
Prime Factors of 81