Factors of 425
The factors of 425 are 1, 5, 17, 25, 85, and 425. In total, 425 has 6 factors. Its prime factorization is 5² × 17, and the sum of all its factors is 558.
All factors of 425
Here are all 6 factors of 425, listed from smallest to largest.
Factor pairs of 425
These 3 pairs of whole numbers each multiply to give 425.
Prime factorization of 425
Dividing 425 by the smallest prime at each step gives its prime factorization:
The distinct prime factors of 425 are 5, 17. To factorize any other number, use the prime factorization calculator.
Factor tree of 425
A factor tree shows the same prime factorization visually. Each composite branch splits until every endpoint is a prime number.
Properties of 425
| Number of factors | 6 |
|---|---|
| Sum of factors | 558 |
| Sum of proper factors | 133 |
| Prime factorization | 5² × 17 |
| Prime or composite? | Composite |
| Even or odd? | Odd |
| Perfect square? | No |
| Perfect cube? | No |
| Classification | Deficient |
What makes 425 interesting
- 425 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 3 different ways.
- 425 is a deficient number: its proper factors sum to 133, which is 292 less than 425 itself.
How to find the factors of 425 yourself
Divide 425 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 √425 ≈ 20.62, because every factor above that pairs with one below it.
Reading both columns gives every factor: 1, 5, 17, 25, 85, 425. The factor calculator does this automatically for any number.
Related numbers
Numbers mathematically connected to 425.
Frequently asked questions about 425
What are the factors of 425?
Is 425 a prime number?
What is the prime factorization of 425?
What two numbers multiply to give 425?
What is the sum of the factors of 425?
Is 425 a perfect square?
What is the largest factor of 425 other than itself?
How many factors does 425 have?
Explore more
Try another number in the factor calculator, break 425 down further with the prime factorization calculator, or compare 425 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.