Factors of 620
The factors of 620 are 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, and 620. In total, 620 has 12 factors. Its prime factorization is 2² × 5 × 31, and the sum of all its factors is 1344.
All factors of 620
Here are all 12 factors of 620, listed from smallest to largest.
Factor pairs of 620
These 6 pairs of whole numbers each multiply to give 620.
Prime factorization of 620
Dividing 620 by the smallest prime at each step gives its prime factorization:
The distinct prime factors of 620 are 2, 5, 31. To factorize any other number, use the prime factorization calculator.
Factor tree of 620
A factor tree shows the same prime factorization visually. Each composite branch splits until every endpoint is a prime number.
Properties of 620
| Number of factors | 12 |
|---|---|
| Sum of factors | 1344 |
| Sum of proper factors | 724 |
| Prime factorization | 2² × 5 × 31 |
| Prime or composite? | Composite |
| Even or odd? | Even |
| Perfect square? | No |
| Perfect cube? | No |
| Classification | Abundant |
What makes 620 interesting
- 620 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 6 different ways.
- 620 is an abundant number: its proper factors sum to 724, which is 104 more than 620 itself.
- 620 has 3 distinct prime factors (2, 5, 31), which is why it has so many divisors.
How to find the factors of 620 yourself
Divide 620 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 √620 ≈ 24.90, because every factor above that pairs with one below it.
Reading both columns gives every factor: 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620. The factor calculator does this automatically for any number.
Related numbers
Numbers mathematically connected to 620.
Frequently asked questions about 620
What are the factors of 620?
Is 620 a prime number?
What is the prime factorization of 620?
What two numbers multiply to give 620?
What is the sum of the factors of 620?
Is 620 a perfect square?
What is the largest factor of 620 other than itself?
How many factors does 620 have?
Explore more
Try another number in the factor calculator, break 620 down further with the prime factorization calculator, or compare 620 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.