Factor Calculator

Factors of 756

The factors of 756 are 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, and 756. In total, 756 has 24 factors. Its prime factorization is 2² × 3³ × 7, and the sum of all its factors is 2240.

All factors of 756

Here are all 24 factors of 756, listed from smallest to largest.

12346791214182127283642546384108126189252378756

Factor pairs of 756

These 12 pairs of whole numbers each multiply to give 756.

1 × 756 = 756
2 × 378 = 756
3 × 252 = 756
4 × 189 = 756
6 × 126 = 756
7 × 108 = 756
9 × 84 = 756
12 × 63 = 756
14 × 54 = 756
18 × 42 = 756
21 × 36 = 756
27 × 28 = 756

Prime factorization of 756

Dividing 756 by the smallest prime at each step gives its prime factorization:

756 ÷ 2 = 378
378 ÷ 2 = 189
189 ÷ 3 = 63
63 ÷ 3 = 21
21 ÷ 3 = 7
7 ÷ 7 = 1
Result: 756 = 2 × 2 × 3 × 3 × 3 × 7 = 2² × 3³ × 7

The distinct prime factors of 756 are 2, 3, 7. To factorize any other number, use the prime factorization calculator.

Factor tree of 756

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

Factor tree of 7567562378218936332137
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 756

Number of factors24
Sum of factors2240
Sum of proper factors1484
Prime factorization2² × 3³ × 7
Prime or composite?Composite
Even or odd?Even
Perfect square?No
Perfect cube?No
ClassificationAbundant

What makes 756 interesting

  • 756 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 12 different ways.
  • 756 is an abundant number: its proper factors sum to 1484, which is 728 more than 756 itself.
  • 756 has 3 distinct prime factors (2, 3, 7), which is why it has so many divisors.

How to find the factors of 756 yourself

Divide 756 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 √75627.50, because every factor above that pairs with one below it.

756 ÷ 1 = 756
756 ÷ 2 = 378
756 ÷ 3 = 252
756 ÷ 4 = 189
756 ÷ 6 = 126
756 ÷ 7 = 108
756 ÷ 9 = 84
756 ÷ 12 = 63
756 ÷ 14 = 54
756 ÷ 18 = 42
756 ÷ 21 = 36
756 ÷ 27 = 28

Reading both columns gives every factor: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756. The factor calculator does this automatically for any number.

Frequently asked questions about 756

What are the factors of 756?

The factors of 756 are 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, and 756. That is 24 factors in total, counting both 1 and 756.

Is 756 a prime number?

No, 756 is not prime — it is a composite number with 24 factors. A prime number has exactly two factors, but 756 is also divisible by 2.

What is the prime factorization of 756?

The prime factorization of 756 is 2² × 3³ × 7. Written out in full: 2 × 2 × 3 × 3 × 3 × 7 = 756. Its distinct prime factors are 2, 3, 7.

What two numbers multiply to give 756?

There are 12 pairs of whole numbers that multiply to 756: 1 × 756, 2 × 378, 3 × 252, 4 × 189, 6 × 126, 7 × 108, 9 × 84, 12 × 63, 14 × 54, 18 × 42, 21 × 36, 27 × 28.

What is the sum of the factors of 756?

Adding all the factors of 756 together gives 2240. Excluding 756 itself, the proper factors sum to 1484.

Is 756 a perfect square?

No, 756 is not a perfect square. There is no whole number that multiplies by itself to give 756. The nearest perfect squares are 729 and 784.

What is the largest factor of 756 other than itself?

The largest factor of 756 apart from 756 itself is 378, since 756 ÷ 378 = 2.

How many factors does 756 have?

756 has 24 factors: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, and 756. You can verify this from the prime factorization 2² × 3³ × 7: add 1 to each exponent and multiply, giving 3 × 4 × 2 = 24.

Explore more

Try another number in the factor calculator, break 756 down further with the prime factorization calculator, or compare 756 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.