Factor Calculator

Factors of 50

The factors of 50 are 1, 2, 5, 10, 25, and 50. In total, 50 has 6 factors. Its prime factorization is 2 × 5², and the sum of all its factors is 93.

All factors of 50

Here are all 6 factors of 50, listed from smallest to largest.

125102550

Factor pairs of 50

These 3 pairs of whole numbers each multiply to give 50.

1 × 50 = 50
2 × 25 = 50
5 × 10 = 50

Prime factorization of 50

Dividing 50 by the smallest prime at each step gives its prime factorization:

50 ÷ 2 = 25
25 ÷ 5 = 5
5 ÷ 5 = 1
Result: 50 = 2 × 5 × 5 = 2 × 5²

The distinct prime factors of 50 are 2, 5. To factorize any other number, use the prime factorization calculator.

Factor tree of 50

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

Factor tree of 505022555
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 50

Number of factors6
Sum of factors93
Sum of proper factors43
Prime factorization2 × 5²
Prime or composite?Composite
Even or odd?Even
Perfect square?No
Perfect cube?No
ClassificationDeficient

What makes 50 interesting

  • 50 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.
  • 50 is a deficient number: its proper factors sum to 43, which is 7 less than 50 itself.

How to find the factors of 50 yourself

Divide 50 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 √507.07, because every factor above that pairs with one below it.

50 ÷ 1 = 50
50 ÷ 2 = 25
50 ÷ 5 = 10

Reading both columns gives every factor: 1, 2, 5, 10, 25, 50. The factor calculator does this automatically for any number.

Frequently asked questions about 50

What are the factors of 50?

The factors of 50 are 1, 2, 5, 10, 25, and 50. That is 6 factors in total, counting both 1 and 50.

Is 50 a prime number?

No, 50 is not prime — it is a composite number with 6 factors. A prime number has exactly two factors, but 50 is also divisible by 2.

What is the prime factorization of 50?

The prime factorization of 50 is 2 × 5². Written out in full: 2 × 5 × 5 = 50. Its distinct prime factors are 2, 5.

What two numbers multiply to give 50?

There are 3 pairs of whole numbers that multiply to 50: 1 × 50, 2 × 25, 5 × 10.

What is the sum of the factors of 50?

Adding all the factors of 50 together gives 93. Excluding 50 itself, the proper factors sum to 43.

Is 50 a perfect square?

No, 50 is not a perfect square. There is no whole number that multiplies by itself to give 50. The nearest perfect squares are 49 and 64.

What is the largest factor of 50 other than itself?

The largest factor of 50 apart from 50 itself is 25, since 50 ÷ 25 = 2.

How many factors does 50 have?

50 has 6 factors: 1, 2, 5, 10, 25, and 50. You can verify this from the prime factorization 2 × 5²: add 1 to each exponent and multiply, giving 2 × 3 = 6.

Explore more

Try another number in the factor calculator, break 50 down further with the prime factorization calculator, or compare 50 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.