Factors of 546

546 has 16 factors: 1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273 and 546. Its prime factorization is 2 × 3 × 7 × 13.

Factor pairs of 546

Factor×FactorProduct
1×546546
2×273546
3×182546
6×91546
7×78546
13×42546
14×39546
21×26546

Negative pairs work too: (−1) × (−546), (−2) × (−273), … = 546.

Number of factors
16
Factor pairs
8
Sum of factors
1,344
Prime or composite
Composite
Even or odd
Even
Perfect square
No
Prime factorization 2 × 3 × 7 × 13

How to find the factors of 546

Test every whole number from 1 up to the square root of 546 (√546 ≈ 23.367). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 546 ÷ 1 = 546 — so 1 and 546 are factors
  • 546 ÷ 2 = 273 — so 2 and 273 are factors
  • 546 ÷ 3 = 182 — so 3 and 182 are factors
  • 546 ÷ 4 = 136.5 — not a whole number
  • 546 ÷ 5 = 109.2 — not a whole number
  • 546 ÷ 6 = 91 — so 6 and 91 are factors
  • 546 ÷ 7 = 78 — so 7 and 78 are factors
  • 546 ÷ 8 = 68.25 — not a whole number
  • 546 ÷ 9 = 60.667 — not a whole number
  • 546 ÷ 10 = 54.6 — not a whole number
  • 546 ÷ 11 = 49.636 — not a whole number
  • 546 ÷ 12 = 45.5 — not a whole number
  • 546 ÷ 13 = 42 — so 13 and 42 are factors
  • 546 ÷ 14 = 39 — so 14 and 39 are factors
  • 546 ÷ 15 = 36.4 — not a whole number
  • 546 ÷ 16 = 34.125 — not a whole number
  • 546 ÷ 17 = 32.118 — not a whole number
  • 546 ÷ 18 = 30.333 — not a whole number
  • 546 ÷ 19 = 28.737 — not a whole number
  • 546 ÷ 20 = 27.3 — not a whole number
  • 546 ÷ 21 = 26 — so 21 and 26 are factors
  • 546 ÷ 22 = 24.818 — not a whole number
  • 546 ÷ 23 = 23.739 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273 and 546.

Prime factorization of 546

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

546 ÷ 2 = 273
273 ÷ 3 = 91
91 ÷ 7 = 13
13 ÷ 13 = 1

The primes you divided by give 546 = 2 × 3 × 7 × 13. From the exponents you can also count the factors without listing them: (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 16.

Properties of 546

  • 546 is a composite number.
  • The sum of all its factors is 1,344; the sum of its proper factors (excluding 546) is 798, which makes it a abundant number (its proper factors add up to more than itself).
  • 546 is not a perfect square, so its factors pair up evenly.
  • Multiples of 546 include 1,092, 1,638, 2,184, 2,730 and so on.

Factors vs. multiples

Factors of 546 are the numbers that divide into it; multiples of 546 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 546?

The factors of 546 are 1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273 and 546. Each of these divides 546 with no remainder.

How many factors does 546 have?

546 has 16 positive factors, which form 8 factor pairs. Counting negative factors as well doubles that to 32.

What is the prime factorization of 546?

546 = 2 × 3 × 7 × 13. Its distinct prime factors are 2, 3, 7 and 13.

Is 546 a prime number?

No. 546 is composite because it has 16 factors, more than the two a prime number has.