Factors of 591
The factors of 591 are 1, 3, 197, and 591. In total, 591 has 4 factors. Its prime factorization is 3 × 197, and the sum of all its factors is 792.
All factors of 591
Here are all 4 factors of 591, listed from smallest to largest.
Factor pairs of 591
These 2 pairs of whole numbers each multiply to give 591.
Prime factorization of 591
Dividing 591 by the smallest prime at each step gives its prime factorization:
The distinct prime factors of 591 are 3, 197. To factorize any other number, use the prime factorization calculator.
Factor tree of 591
A factor tree shows the same prime factorization visually. Each composite branch splits until every endpoint is a prime number.
Properties of 591
| Number of factors | 4 |
|---|---|
| Sum of factors | 792 |
| Sum of proper factors | 201 |
| Prime factorization | 3 × 197 |
| Prime or composite? | Composite |
| Even or odd? | Odd |
| Perfect square? | No |
| Perfect cube? | No |
| Classification | Deficient |
What makes 591 interesting
- 591 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 2 different ways.
- 591 is a deficient number: its proper factors sum to 201, which is 390 less than 591 itself.
How to find the factors of 591 yourself
Divide 591 by each whole number starting from 1. Whenever the division leaves no remainder, both the divisor and the quotient are factors. You only need to test up to √591 ≈ 24.31, because every factor above that pairs with one below it.
Reading both columns gives every factor: 1, 3, 197, 591. The factor calculator does this automatically for any number.
Related numbers
Numbers mathematically connected to 591.
Frequently asked questions about 591
What are the factors of 591?
Is 591 a prime number?
What is the prime factorization of 591?
What two numbers multiply to give 591?
What is the sum of the factors of 591?
Is 591 a perfect square?
What is the largest factor of 591 other than itself?
How many factors does 591 have?
Explore more
Try another number in the factor calculator, break 591 down further with the prime factorization calculator, or compare 591 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.