How to find the factors of 675
Test every whole number from 1 up to the square root of 675 (√675 ≈ 25.981). Each number that divides evenly gives you two factors at once: the divisor and the quotient.
- 675 ÷ 1 = 675 — so 1 and 675 are factors
- 675 ÷ 2 = 337.5 — not a whole number
- 675 ÷ 3 = 225 — so 3 and 225 are factors
- 675 ÷ 4 = 168.75 — not a whole number
- 675 ÷ 5 = 135 — so 5 and 135 are factors
- 675 ÷ 6 = 112.5 — not a whole number
- 675 ÷ 7 = 96.429 — not a whole number
- 675 ÷ 8 = 84.375 — not a whole number
- 675 ÷ 9 = 75 — so 9 and 75 are factors
- 675 ÷ 10 = 67.5 — not a whole number
- 675 ÷ 11 = 61.364 — not a whole number
- 675 ÷ 12 = 56.25 — not a whole number
- 675 ÷ 13 = 51.923 — not a whole number
- 675 ÷ 14 = 48.214 — not a whole number
- 675 ÷ 15 = 45 — so 15 and 45 are factors
- 675 ÷ 16 = 42.188 — not a whole number
- 675 ÷ 17 = 39.706 — not a whole number
- 675 ÷ 18 = 37.5 — not a whole number
- 675 ÷ 19 = 35.526 — not a whole number
- 675 ÷ 20 = 33.75 — not a whole number
- 675 ÷ 21 = 32.143 — not a whole number
- 675 ÷ 22 = 30.682 — not a whole number
- 675 ÷ 23 = 29.348 — not a whole number
- 675 ÷ 24 = 28.125 — not a whole number
- 675 ÷ 25 = 27 — so 25 and 27 are factors
Collecting both numbers from every successful division gives the complete list: 1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225 and 675.
Prime factorization of 675
Divide by the smallest prime that fits, and keep going until the quotient is 1:
The primes you divided by give 675 = 3³ × 5². From the exponents you can also count the factors without listing them: (3 + 1) × (2 + 1) = 12.
Properties of 675
- 675 is a composite number.
- The sum of all its factors is 1,240; the sum of its proper factors (excluding 675) is 565, which makes it a deficient number (its proper factors add up to less than itself).
- 675 is not a perfect square, so its factors pair up evenly.
- Multiples of 675 include 1,350, 2,025, 2,700, 3,375 and so on.
Factors vs. multiples
Factors of 675 are the numbers that divide into it; multiples of 675 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 675?
The factors of 675 are 1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225 and 675. Each of these divides 675 with no remainder.
How many factors does 675 have?
675 has 12 positive factors, which form 6 factor pairs. Counting negative factors as well doubles that to 24.
What is the prime factorization of 675?
675 = 3³ × 5². Its distinct prime factors are 3 and 5.
Is 675 a prime number?
No. 675 is composite because it has 12 factors, more than the two a prime number has.