Divisors of 756: All 24 Factors
Quick Answer
756 has 24 divisors (factors): 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756.
Sum: 2240.
Divisors (Factors) Calculator
Use the calculator above to find all divisors (also called factors) of any positive integer up to 4,782,969. Beyond the divisor list, this tool also shows divisor pairs, the sum and count of divisors, prime factorization, and number properties (prime, perfect square, perfect number).
All Divisors of 756
The number 756 has 24 divisors:
1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
Divisor Pairs of 756
Each pair multiplies to 756:
| Factor 1 | × | Factor 2 | = | Product |
|---|---|---|---|---|
| 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 |
Number of Divisors
The number 756 has 24 divisors, written as τ(756) = 24 in number theory.
Sum of Divisors
σ(756) = 1 + 2 + 3 + 4 + 6 + 7 + 9 + 12 + 14 + 18 + 21 + 27 + 28 + 36 + 42 + 54 + 63 + 84 + 108 + 126 + 189 + 252 + 378 + 756 = 2240
Prime Factorization of 756
Properties of 756
- 756 is composite.
- 756 is not a perfect square.
- Number of divisors: 24.
- Sum of divisors: 2240.
Common Divisors with Another Number?
Looking for the divisors that 756 shares with another number? Use our Greatest Common Factor (GCF) calculator — it finds all common divisors and the largest one.
Step-by-Step: How to Find the Divisors of 756
An efficient way to find divisors uses the complementary pair trick: check each integer i from 1 to √756 ≈ 27.50. If i divides 756, then both i and 756/i are divisors.
- 1 divides 756 (756 ÷ 1 = 756) → pair (1, 756)
- 2 divides 756 (756 ÷ 2 = 378) → pair (2, 378)
- 3 divides 756 (756 ÷ 3 = 252) → pair (3, 252)
- 4 divides 756 (756 ÷ 4 = 189) → pair (4, 189)
- 6 divides 756 (756 ÷ 6 = 126) → pair (6, 126)
- 7 divides 756 (756 ÷ 7 = 108) → pair (7, 108)
- 9 divides 756 (756 ÷ 9 = 84) → pair (9, 84)
- 12 divides 756 (756 ÷ 12 = 63) → pair (12, 63)
- 14 divides 756 (756 ÷ 14 = 54) → pair (14, 54)
- 18 divides 756 (756 ÷ 18 = 42) → pair (18, 42)
- 21 divides 756 (756 ÷ 21 = 36) → pair (21, 36)
- 27 divides 756 (756 ÷ 27 = 28) → pair (27, 28)
- Collect all unique values: {1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756} — total 24 divisors.
- Sum: 1 + 2 + 3 + 4 + 6 + 7 + 9 + 12 + 14 + 18 + 21 + 27 + 28 + 36 + 42 + 54 + 63 + 84 + 108 + 126 + 189 + 252 + 378 + 756 = 2240.
Nearby Examples
Related Operations for 756
- Multiples of 756 — "outward" complement; M is a multiple of 756 ⇔ 756 is a divisor of M
- 756 Prime Factorization — decompose into prime building blocks
- Find GCF of 756 and another number
- Find LCM of 756 and another number
- Is 756 a perfect square? (odd divisor count ⇔ yes)
See also our tables of divisors:
What Is a Divisor?
A divisor (also called a factor) of a positive integer n is any positive integer d such that n ÷ d has no remainder. In other words, d divides n evenly.
Every positive integer n has at least two divisors: 1 and n itself (with 1 being the trivial case of having only itself). Numbers with exactly 2 divisors are prime; numbers with 3 or more divisors are composite.
Why use this calculator? Beyond just listing divisors, this tool computes the sum σ(n), the count τ(n), prime factorization, divisor pairs (useful for visual learners and factoring problems), and detects whether n is a prime, a perfect square, or a perfect number.
Divisors Calculation Examples
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Related Calculators
- Multiples of a Number — "outward" complement
- Prime Factorization — product of prime divisors
- Greatest Common Factor (GCF) — largest common divisor of 2+ numbers
- Least Common Multiple (LCM) — smallest common multiple
- Is N a Perfect Square? — odd divisor count check