Factors of 756

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. Its prime factorization is 2² × 3³ × 7.

Factor pairs of 756

Factor×FactorProduct
1×756756
2×378756
3×252756
4×189756
6×126756
7×108756
9×84756
12×63756
14×54756
18×42756
21×36756
27×28756

Negative pairs work too: (−1) × (−756), (−2) × (−378), … = 756.

Number of factors
24
Factor pairs
12
Sum of factors
2,240
Prime or composite
Composite
Even or odd
Even
Perfect square
No
Prime factorization 2² × 3³ × 7

How to find the factors of 756

Test every whole number from 1 up to the square root of 756 (√756 ≈ 27.495). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 756 ÷ 1 = 756 — so 1 and 756 are factors
  • 756 ÷ 2 = 378 — so 2 and 378 are factors
  • 756 ÷ 3 = 252 — so 3 and 252 are factors
  • 756 ÷ 4 = 189 — so 4 and 189 are factors
  • 756 ÷ 5 = 151.2 — not a whole number
  • 756 ÷ 6 = 126 — so 6 and 126 are factors
  • 756 ÷ 7 = 108 — so 7 and 108 are factors
  • 756 ÷ 8 = 94.5 — not a whole number
  • 756 ÷ 9 = 84 — so 9 and 84 are factors
  • 756 ÷ 10 = 75.6 — not a whole number
  • 756 ÷ 11 = 68.727 — not a whole number
  • 756 ÷ 12 = 63 — so 12 and 63 are factors
  • 756 ÷ 13 = 58.154 — not a whole number
  • 756 ÷ 14 = 54 — so 14 and 54 are factors
  • 756 ÷ 15 = 50.4 — not a whole number
  • 756 ÷ 16 = 47.25 — not a whole number
  • 756 ÷ 17 = 44.471 — not a whole number
  • 756 ÷ 18 = 42 — so 18 and 42 are factors
  • 756 ÷ 19 = 39.789 — not a whole number
  • 756 ÷ 20 = 37.8 — not a whole number
  • 756 ÷ 21 = 36 — so 21 and 36 are factors
  • 756 ÷ 22 = 34.364 — not a whole number
  • 756 ÷ 23 = 32.87 — not a whole number
  • 756 ÷ 24 = 31.5 — not a whole number
  • 756 ÷ 25 = 30.24 — not a whole number
  • 756 ÷ 26 = 29.077 — not a whole number
  • 756 ÷ 27 = 28 — so 27 and 28 are factors

Collecting both numbers from every successful division gives the complete list: 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.

Prime factorization of 756

Divide by the smallest prime that fits, and keep going until the quotient is 1:

756 ÷ 2 = 378
378 ÷ 2 = 189
189 ÷ 3 = 63
63 ÷ 3 = 21
21 ÷ 3 = 7
7 ÷ 7 = 1

The primes you divided by give 756 = 2² × 3³ × 7. From the exponents you can also count the factors without listing them: (2 + 1) × (3 + 1) × (1 + 1) = 24.

Properties of 756

  • 756 is a composite number.
  • The sum of all its factors is 2,240; the sum of its proper factors (excluding 756) is 1,484, which makes it a abundant number (its proper factors add up to more than itself).
  • 756 is not a perfect square, so its factors pair up evenly.
  • Multiples of 756 include 1,512, 2,268, 3,024, 3,780 and so on.

Factors vs. multiples

Factors of 756 are the numbers that divide into it; multiples of 756 are the numbers it divides into. Every number has a limited set of factors but infinitely many multiples. To work with any other number, use the factors calculator, or find shared factors with the GCF calculator.

Frequently asked questions

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. Each of these divides 756 with no remainder.

How many factors does 756 have?

756 has 24 positive factors, which form 12 factor pairs. Counting negative factors as well doubles that to 48.

What is the prime factorization of 756?

756 = 2² × 3³ × 7. Its distinct prime factors are 2, 3 and 7.

Is 756 a prime number?

No. 756 is composite because it has 24 factors, more than the two a prime number has.