Factors of 679

679 has 4 factors: 1, 7, 97 and 679. Its prime factorization is 7 × 97.

Factor pairs of 679

Factor×FactorProduct
1×679679
7×97679

Negative pairs work too: (−1) × (−679), (−7) × (−97) = 679.

Number of factors
4
Factor pairs
2
Sum of factors
784
Prime or composite
Composite
Even or odd
Odd
Perfect square
No
Prime factorization 7 × 97

How to find the factors of 679

Test every whole number from 1 up to the square root of 679 (√679 ≈ 26.058). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 679 ÷ 1 = 679 — so 1 and 679 are factors
  • 679 ÷ 2 = 339.5 — not a whole number
  • 679 ÷ 3 = 226.333 — not a whole number
  • 679 ÷ 4 = 169.75 — not a whole number
  • 679 ÷ 5 = 135.8 — not a whole number
  • 679 ÷ 6 = 113.167 — not a whole number
  • 679 ÷ 7 = 97 — so 7 and 97 are factors
  • 679 ÷ 8 = 84.875 — not a whole number
  • 679 ÷ 9 = 75.444 — not a whole number
  • 679 ÷ 10 = 67.9 — not a whole number
  • 679 ÷ 11 = 61.727 — not a whole number
  • 679 ÷ 12 = 56.583 — not a whole number
  • 679 ÷ 13 = 52.231 — not a whole number
  • 679 ÷ 14 = 48.5 — not a whole number
  • 679 ÷ 15 = 45.267 — not a whole number
  • 679 ÷ 16 = 42.438 — not a whole number
  • 679 ÷ 17 = 39.941 — not a whole number
  • 679 ÷ 18 = 37.722 — not a whole number
  • 679 ÷ 19 = 35.737 — not a whole number
  • 679 ÷ 20 = 33.95 — not a whole number
  • 679 ÷ 21 = 32.333 — not a whole number
  • 679 ÷ 22 = 30.864 — not a whole number
  • 679 ÷ 23 = 29.522 — not a whole number
  • 679 ÷ 24 = 28.292 — not a whole number
  • 679 ÷ 25 = 27.16 — not a whole number
  • 679 ÷ 26 = 26.115 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 7, 97 and 679.

Prime factorization of 679

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

679 ÷ 7 = 97
97 ÷ 97 = 1

The primes you divided by give 679 = 7 × 97. From the exponents you can also count the factors without listing them: (1 + 1) × (1 + 1) = 4.

Properties of 679

  • 679 is a composite number.
  • The sum of all its factors is 784; the sum of its proper factors (excluding 679) is 105, which makes it a deficient number (its proper factors add up to less than itself).
  • 679 is not a perfect square, so its factors pair up evenly.
  • Multiples of 679 include 1,358, 2,037, 2,716, 3,395 and so on.

Factors vs. multiples

Factors of 679 are the numbers that divide into it; multiples of 679 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 679?

The factors of 679 are 1, 7, 97 and 679. Each of these divides 679 with no remainder.

How many factors does 679 have?

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

What is the prime factorization of 679?

679 = 7 × 97. Its distinct prime factors are 7 and 97.

Is 679 a prime number?

No. 679 is composite because it has 4 factors, more than the two a prime number has.