Factor Calculator

Factors of 725

The factors of 725 are 1, 5, 25, 29, 145, and 725. In total, 725 has 6 factors. Its prime factorization is 5² × 29, and the sum of all its factors is 930.

All factors of 725

Here are all 6 factors of 725, listed from smallest to largest.

152529145725

Factor pairs of 725

These 3 pairs of whole numbers each multiply to give 725.

1 × 725 = 725
5 × 145 = 725
25 × 29 = 725

Prime factorization of 725

Dividing 725 by the smallest prime at each step gives its prime factorization:

725 ÷ 5 = 145
145 ÷ 5 = 29
29 ÷ 29 = 1
Result: 725 = 5 × 5 × 29 = 5² × 29

The distinct prime factors of 725 are 5, 29. To factorize any other number, use the prime factorization calculator.

Factor tree of 725

A factor tree shows the same prime factorization visually. Each composite branch splits until every endpoint is a prime number.

Factor tree of 7257255145529
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 725

Number of factors6
Sum of factors930
Sum of proper factors205
Prime factorization5² × 29
Prime or composite?Composite
Even or odd?Odd
Perfect square?No
Perfect cube?No
ClassificationDeficient

What makes 725 interesting

  • 725 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.
  • 725 is a deficient number: its proper factors sum to 205, which is 520 less than 725 itself.

How to find the factors of 725 yourself

Divide 725 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 √72526.93, because every factor above that pairs with one below it.

725 ÷ 1 = 725
725 ÷ 5 = 145
725 ÷ 25 = 29

Reading both columns gives every factor: 1, 5, 25, 29, 145, 725. The factor calculator does this automatically for any number.

Frequently asked questions about 725

What are the factors of 725?

The factors of 725 are 1, 5, 25, 29, 145, and 725. That is 6 factors in total, counting both 1 and 725.

Is 725 a prime number?

No, 725 is not prime — it is a composite number with 6 factors. A prime number has exactly two factors, but 725 is also divisible by 5.

What is the prime factorization of 725?

The prime factorization of 725 is 5² × 29. Written out in full: 5 × 5 × 29 = 725. Its distinct prime factors are 5, 29.

What two numbers multiply to give 725?

There are 3 pairs of whole numbers that multiply to 725: 1 × 725, 5 × 145, 25 × 29.

What is the sum of the factors of 725?

Adding all the factors of 725 together gives 930. Excluding 725 itself, the proper factors sum to 205.

Is 725 a perfect square?

No, 725 is not a perfect square. There is no whole number that multiplies by itself to give 725. The nearest perfect squares are 676 and 729.

What is the largest factor of 725 other than itself?

The largest factor of 725 apart from 725 itself is 145, since 725 ÷ 145 = 5.

How many factors does 725 have?

725 has 6 factors: 1, 5, 25, 29, 145, and 725. You can verify this from the prime factorization 5² × 29: add 1 to each exponent and multiply, giving 3 × 2 = 6.

Explore more

Try another number in the factor calculator, break 725 down further with the prime factorization calculator, or compare 725 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.