Factors of 873

873 has 6 factors: 1, 3, 9, 97, 291 and 873. Its prime factorization is 3² × 97.

Factor pairs of 873

Factor×FactorProduct
1×873873
3×291873
9×97873

Negative pairs work too: (−1) × (−873), (−3) × (−291), … = 873.

Number of factors
6
Factor pairs
3
Sum of factors
1,274
Prime or composite
Composite
Even or odd
Odd
Perfect square
No
Prime factorization 3² × 97

How to find the factors of 873

Test every whole number from 1 up to the square root of 873 (√873 ≈ 29.547). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 873 ÷ 1 = 873 — so 1 and 873 are factors
  • 873 ÷ 2 = 436.5 — not a whole number
  • 873 ÷ 3 = 291 — so 3 and 291 are factors
  • 873 ÷ 4 = 218.25 — not a whole number
  • 873 ÷ 5 = 174.6 — not a whole number
  • 873 ÷ 6 = 145.5 — not a whole number
  • 873 ÷ 7 = 124.714 — not a whole number
  • 873 ÷ 8 = 109.125 — not a whole number
  • 873 ÷ 9 = 97 — so 9 and 97 are factors
  • 873 ÷ 10 = 87.3 — not a whole number
  • 873 ÷ 11 = 79.364 — not a whole number
  • 873 ÷ 12 = 72.75 — not a whole number
  • 873 ÷ 13 = 67.154 — not a whole number
  • 873 ÷ 14 = 62.357 — not a whole number
  • 873 ÷ 15 = 58.2 — not a whole number
  • 873 ÷ 16 = 54.563 — not a whole number
  • 873 ÷ 17 = 51.353 — not a whole number
  • 873 ÷ 18 = 48.5 — not a whole number
  • 873 ÷ 19 = 45.947 — not a whole number
  • 873 ÷ 20 = 43.65 — not a whole number
  • 873 ÷ 21 = 41.571 — not a whole number
  • 873 ÷ 22 = 39.682 — not a whole number
  • 873 ÷ 23 = 37.957 — not a whole number
  • 873 ÷ 24 = 36.375 — not a whole number
  • 873 ÷ 25 = 34.92 — not a whole number
  • 873 ÷ 26 = 33.577 — not a whole number
  • 873 ÷ 27 = 32.333 — not a whole number
  • 873 ÷ 28 = 31.179 — not a whole number
  • 873 ÷ 29 = 30.103 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 3, 9, 97, 291 and 873.

Prime factorization of 873

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

873 ÷ 3 = 291
291 ÷ 3 = 97
97 ÷ 97 = 1

The primes you divided by give 873 = 3² × 97. From the exponents you can also count the factors without listing them: (2 + 1) × (1 + 1) = 6.

Properties of 873

  • 873 is a composite number.
  • The sum of all its factors is 1,274; the sum of its proper factors (excluding 873) is 401, which makes it a deficient number (its proper factors add up to less than itself).
  • 873 is not a perfect square, so its factors pair up evenly.
  • Multiples of 873 include 1,746, 2,619, 3,492, 4,365 and so on.

Factors vs. multiples

Factors of 873 are the numbers that divide into it; multiples of 873 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 873?

The factors of 873 are 1, 3, 9, 97, 291 and 873. Each of these divides 873 with no remainder.

How many factors does 873 have?

873 has 6 positive factors, which form 3 factor pairs. Counting negative factors as well doubles that to 12.

What is the prime factorization of 873?

873 = 3² × 97. Its distinct prime factors are 3 and 97.

Is 873 a prime number?

No. 873 is composite because it has 6 factors, more than the two a prime number has.