Factor Calculator

Factors of 1025

The factors of 1025 are 1, 5, 25, 41, 205, and 1025. In total, 1025 has 6 factors. Its prime factorization is 5² × 41, and the sum of all its factors is 1302.

All factors of 1025

Here are all 6 factors of 1025, listed from smallest to largest.

1525412051025

Factor pairs of 1025

These 3 pairs of whole numbers each multiply to give 1025.

1 × 1025 = 1025
5 × 205 = 1025
25 × 41 = 1025

Prime factorization of 1025

Dividing 1025 by the smallest prime at each step gives its prime factorization:

1025 ÷ 5 = 205
205 ÷ 5 = 41
41 ÷ 41 = 1
Result: 1025 = 5 × 5 × 41 = 5² × 41

The distinct prime factors of 1025 are 5, 41. To factorize any other number, use the prime factorization calculator.

Factor tree of 1025

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

Factor tree of 102510255205541
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 1025

Number of factors6
Sum of factors1302
Sum of proper factors277
Prime factorization5² × 41
Prime or composite?Composite
Even or odd?Odd
Perfect square?No
Perfect cube?No
ClassificationDeficient

What makes 1025 interesting

  • 1025 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.
  • 1025 is a deficient number: its proper factors sum to 277, which is 748 less than 1025 itself.

How to find the factors of 1025 yourself

Divide 1025 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 √102532.02, because every factor above that pairs with one below it.

1025 ÷ 1 = 1025
1025 ÷ 5 = 205
1025 ÷ 25 = 41

Reading both columns gives every factor: 1, 5, 25, 41, 205, 1025. The factor calculator does this automatically for any number.

Frequently asked questions about 1025

What are the factors of 1025?

The factors of 1025 are 1, 5, 25, 41, 205, and 1025. That is 6 factors in total, counting both 1 and 1025.

Is 1025 a prime number?

No, 1025 is not prime — it is a composite number with 6 factors. A prime number has exactly two factors, but 1025 is also divisible by 5.

What is the prime factorization of 1025?

The prime factorization of 1025 is 5² × 41. Written out in full: 5 × 5 × 41 = 1025. Its distinct prime factors are 5, 41.

What two numbers multiply to give 1025?

There are 3 pairs of whole numbers that multiply to 1025: 1 × 1025, 5 × 205, 25 × 41.

What is the sum of the factors of 1025?

Adding all the factors of 1025 together gives 1302. Excluding 1025 itself, the proper factors sum to 277.

Is 1025 a perfect square?

No, 1025 is not a perfect square. There is no whole number that multiplies by itself to give 1025. The nearest perfect squares are 1024 and 1089.

What is the largest factor of 1025 other than itself?

The largest factor of 1025 apart from 1025 itself is 205, since 1025 ÷ 205 = 5.

How many factors does 1025 have?

1025 has 6 factors: 1, 5, 25, 41, 205, and 1025. You can verify this from the prime factorization 5² × 41: add 1 to each exponent and multiply, giving 3 × 2 = 6.

Explore more

Try another number in the factor calculator, break 1025 down further with the prime factorization calculator, or compare 1025 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.