Factors of 542

542 has 4 factors: 1, 2, 271 and 542. Its prime factorization is 2 × 271.

Factor pairs of 542

Factor×FactorProduct
1×542542
2×271542

Negative pairs work too: (−1) × (−542), (−2) × (−271) = 542.

Number of factors
4
Factor pairs
2
Sum of factors
816
Prime or composite
Composite
Even or odd
Even
Perfect square
No
Prime factorization 2 × 271

How to find the factors of 542

Test every whole number from 1 up to the square root of 542 (√542 ≈ 23.281). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 542 ÷ 1 = 542 — so 1 and 542 are factors
  • 542 ÷ 2 = 271 — so 2 and 271 are factors
  • 542 ÷ 3 = 180.667 — not a whole number
  • 542 ÷ 4 = 135.5 — not a whole number
  • 542 ÷ 5 = 108.4 — not a whole number
  • 542 ÷ 6 = 90.333 — not a whole number
  • 542 ÷ 7 = 77.429 — not a whole number
  • 542 ÷ 8 = 67.75 — not a whole number
  • 542 ÷ 9 = 60.222 — not a whole number
  • 542 ÷ 10 = 54.2 — not a whole number
  • 542 ÷ 11 = 49.273 — not a whole number
  • 542 ÷ 12 = 45.167 — not a whole number
  • 542 ÷ 13 = 41.692 — not a whole number
  • 542 ÷ 14 = 38.714 — not a whole number
  • 542 ÷ 15 = 36.133 — not a whole number
  • 542 ÷ 16 = 33.875 — not a whole number
  • 542 ÷ 17 = 31.882 — not a whole number
  • 542 ÷ 18 = 30.111 — not a whole number
  • 542 ÷ 19 = 28.526 — not a whole number
  • 542 ÷ 20 = 27.1 — not a whole number
  • 542 ÷ 21 = 25.81 — not a whole number
  • 542 ÷ 22 = 24.636 — not a whole number
  • 542 ÷ 23 = 23.565 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 2, 271 and 542.

Prime factorization of 542

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

542 ÷ 2 = 271
271 ÷ 271 = 1

The primes you divided by give 542 = 2 × 271. From the exponents you can also count the factors without listing them: (1 + 1) × (1 + 1) = 4.

Properties of 542

  • 542 is a composite number.
  • The sum of all its factors is 816; the sum of its proper factors (excluding 542) is 274, which makes it a deficient number (its proper factors add up to less than itself).
  • 542 is not a perfect square, so its factors pair up evenly.
  • Multiples of 542 include 1,084, 1,626, 2,168, 2,710 and so on.

Factors vs. multiples

Factors of 542 are the numbers that divide into it; multiples of 542 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 542?

The factors of 542 are 1, 2, 271 and 542. Each of these divides 542 with no remainder.

How many factors does 542 have?

542 has 4 positive factors, which form 2 factor pairs. Counting negative factors as well doubles that to 8.

What is the prime factorization of 542?

542 = 2 × 271. Its distinct prime factors are 2 and 271.

Is 542 a prime number?

No. 542 is composite because it has 4 factors, more than the two a prime number has.