# Prime factorization of 81

Here you will see step by step solution of prime factorization of 81, how to find factors of 81, you will see all factors of 81, how many factors of 81 has? Factors of 81 are 1, 3, 9, 27, 81, we can see that 81 has 5 factor and sum of all factors is 121.

• All Factors of 81: 1, 3, 9, 27, 81
• Prime Factors of 81: 3 × 3 × 3 × 3
• Prime Factorization of 81: 34
• Sum of Factors of 81: 121
• Is 81 prime number: No

### How to find factors of 81 by Division Method?

To find the factors of 81 by division method, we need the find the all numbers between 1 to 81, which divide 81 with 0 remainder, then the number is factor of 81.

### Pair factors of 81

• 81/1 = 81 [ 1 × 81 (1, 81) 1 and 81 is pair factor of 81]
• 81/3 = 27 [ 3 × 27 (3, 27) 3 and 27 is pair factor of 81]
• 81/9 = 9 [ 9 × 9 (9, 9) 9 and 9 is pair factor of 81]
• 81/27 = 3 [ 27 × 3 (27, 3) 27 and 3 is pair factor of 81]
• 81/81 = 1 [ 81 × 1 (81, 1) 81 and 1 is pair factor of 81]

As we checked numbers between 1 to 81 that are not leaving any remainder, hence we can say factors of 81 is 1, 3, 9, 27, 81.

Also note that, in exponential form prime factorization of 81 is written as 34 and it is a composite number.

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