# Prime factorization of 561

Here you will see step by step solution of prime factorization of 561, how to find factors of 561, you will see all factors of 561, how many factors of 561 has? Factors of 561 are 1, 3, 11, 17, 33, 51, 187, 561, we can see that 561 has 8 factor and sum of all factors is 864.

• All Factors of 561: 1, 3, 11, 17, 33, 51, 187, 561
• Prime Factors of 561: 3 × 11 × 17
• Prime Factorization of 561: 31 × 111 × 171
• Sum of Factors of 561: 864
• Is 561 prime number: No

### How to find factors of 561 by Division Method?

To find the factors of 561 by division method, we need the find the all numbers between 1 to 561, which divide 561 with 0 remainder, then the number is factor of 561.

### Pair factors of 561

• 561/1 = 561 [ 1 × 561 (1, 561) 1 and 561 is pair factor of 561]
• 561/3 = 187 [ 3 × 187 (3, 187) 3 and 187 is pair factor of 561]
• 561/11 = 51 [ 11 × 51 (11, 51) 11 and 51 is pair factor of 561]
• 561/17 = 33 [ 17 × 33 (17, 33) 17 and 33 is pair factor of 561]
• 561/33 = 17 [ 33 × 17 (33, 17) 33 and 17 is pair factor of 561]
• 561/51 = 11 [ 51 × 11 (51, 11) 51 and 11 is pair factor of 561]
• 561/187 = 3 [ 187 × 3 (187, 3) 187 and 3 is pair factor of 561]
• 561/561 = 1 [ 561 × 1 (561, 1) 561 and 1 is pair factor of 561]

As we checked numbers between 1 to 561 that are not leaving any remainder, hence we can say factors of 561 is 1, 3, 11, 17, 33, 51, 187, 561.

Also note that, in exponential form prime factorization of 561 is written as 31 × 111 × 171 and it is a composite number.

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