Factors of 973

973 has 4 factors: 1, 7, 139 and 973. Its prime factorization is 7 × 139.

Factor pairs of 973

Factor×FactorProduct
1×973973
7×139973

Negative pairs work too: (−1) × (−973), (−7) × (−139) = 973.

Number of factors
4
Factor pairs
2
Sum of factors
1,120
Prime or composite
Composite
Even or odd
Odd
Perfect square
No
Prime factorization 7 × 139

How to find the factors of 973

Test every whole number from 1 up to the square root of 973 (√973 ≈ 31.193). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 973 ÷ 1 = 973 — so 1 and 973 are factors
  • 973 ÷ 2 = 486.5 — not a whole number
  • 973 ÷ 3 = 324.333 — not a whole number
  • 973 ÷ 4 = 243.25 — not a whole number
  • 973 ÷ 5 = 194.6 — not a whole number
  • 973 ÷ 6 = 162.167 — not a whole number
  • 973 ÷ 7 = 139 — so 7 and 139 are factors
  • 973 ÷ 8 = 121.625 — not a whole number
  • 973 ÷ 9 = 108.111 — not a whole number
  • 973 ÷ 10 = 97.3 — not a whole number
  • 973 ÷ 11 = 88.455 — not a whole number
  • 973 ÷ 12 = 81.083 — not a whole number
  • 973 ÷ 13 = 74.846 — not a whole number
  • 973 ÷ 14 = 69.5 — not a whole number
  • 973 ÷ 15 = 64.867 — not a whole number
  • 973 ÷ 16 = 60.813 — not a whole number
  • 973 ÷ 17 = 57.235 — not a whole number
  • 973 ÷ 18 = 54.056 — not a whole number
  • 973 ÷ 19 = 51.211 — not a whole number
  • 973 ÷ 20 = 48.65 — not a whole number
  • 973 ÷ 21 = 46.333 — not a whole number
  • 973 ÷ 22 = 44.227 — not a whole number
  • 973 ÷ 23 = 42.304 — not a whole number
  • 973 ÷ 24 = 40.542 — not a whole number
  • 973 ÷ 25 = 38.92 — not a whole number
  • 973 ÷ 26 = 37.423 — not a whole number
  • 973 ÷ 27 = 36.037 — not a whole number
  • 973 ÷ 28 = 34.75 — not a whole number
  • 973 ÷ 29 = 33.552 — not a whole number
  • 973 ÷ 30 = 32.433 — not a whole number
  • 973 ÷ 31 = 31.387 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 7, 139 and 973.

Prime factorization of 973

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

973 ÷ 7 = 139
139 ÷ 139 = 1

The primes you divided by give 973 = 7 × 139. From the exponents you can also count the factors without listing them: (1 + 1) × (1 + 1) = 4.

Properties of 973

  • 973 is a composite number.
  • The sum of all its factors is 1,120; the sum of its proper factors (excluding 973) is 147, which makes it a deficient number (its proper factors add up to less than itself).
  • 973 is not a perfect square, so its factors pair up evenly.
  • Multiples of 973 include 1,946, 2,919, 3,892, 4,865 and so on.

Factors vs. multiples

Factors of 973 are the numbers that divide into it; multiples of 973 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 973?

The factors of 973 are 1, 7, 139 and 973. Each of these divides 973 with no remainder.

How many factors does 973 have?

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

What is the prime factorization of 973?

973 = 7 × 139. Its distinct prime factors are 7 and 139.

Is 973 a prime number?

No. 973 is composite because it has 4 factors, more than the two a prime number has.