Factors of 745
The factors of 745 are 1, 5, 149, and 745. In total, 745 has 4 factors. Its prime factorization is 5 × 149, and the sum of all its factors is 900.
All factors of 745
Here are all 4 factors of 745, listed from smallest to largest.
Factor pairs of 745
These 2 pairs of whole numbers each multiply to give 745.
Prime factorization of 745
Dividing 745 by the smallest prime at each step gives its prime factorization:
The distinct prime factors of 745 are 5, 149. To factorize any other number, use the prime factorization calculator.
Factor tree of 745
A factor tree shows the same prime factorization visually. Each composite branch splits until every endpoint is a prime number.
Properties of 745
| Number of factors | 4 |
|---|---|
| Sum of factors | 900 |
| Sum of proper factors | 155 |
| Prime factorization | 5 × 149 |
| Prime or composite? | Composite |
| Even or odd? | Odd |
| Perfect square? | No |
| Perfect cube? | No |
| Classification | Deficient |
What makes 745 interesting
- 745 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.
- 745 is a deficient number: its proper factors sum to 155, which is 590 less than 745 itself.
How to find the factors of 745 yourself
Divide 745 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 √745 ≈ 27.29, because every factor above that pairs with one below it.
Reading both columns gives every factor: 1, 5, 149, 745. The factor calculator does this automatically for any number.
Related numbers
Numbers mathematically connected to 745.
Frequently asked questions about 745
What are the factors of 745?
Is 745 a prime number?
What is the prime factorization of 745?
What two numbers multiply to give 745?
What is the sum of the factors of 745?
Is 745 a perfect square?
What is the largest factor of 745 other than itself?
How many factors does 745 have?
Explore more
Try another number in the factor calculator, break 745 down further with the prime factorization calculator, or compare 745 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.