How to find the factors of 726
Test every whole number from 1 up to the square root of 726 (√726 ≈ 26.944). Each number that divides evenly gives you two factors at once: the divisor and the quotient.
- 726 ÷ 1 = 726 — so 1 and 726 are factors
- 726 ÷ 2 = 363 — so 2 and 363 are factors
- 726 ÷ 3 = 242 — so 3 and 242 are factors
- 726 ÷ 4 = 181.5 — not a whole number
- 726 ÷ 5 = 145.2 — not a whole number
- 726 ÷ 6 = 121 — so 6 and 121 are factors
- 726 ÷ 7 = 103.714 — not a whole number
- 726 ÷ 8 = 90.75 — not a whole number
- 726 ÷ 9 = 80.667 — not a whole number
- 726 ÷ 10 = 72.6 — not a whole number
- 726 ÷ 11 = 66 — so 11 and 66 are factors
- 726 ÷ 12 = 60.5 — not a whole number
- 726 ÷ 13 = 55.846 — not a whole number
- 726 ÷ 14 = 51.857 — not a whole number
- 726 ÷ 15 = 48.4 — not a whole number
- 726 ÷ 16 = 45.375 — not a whole number
- 726 ÷ 17 = 42.706 — not a whole number
- 726 ÷ 18 = 40.333 — not a whole number
- 726 ÷ 19 = 38.211 — not a whole number
- 726 ÷ 20 = 36.3 — not a whole number
- 726 ÷ 21 = 34.571 — not a whole number
- 726 ÷ 22 = 33 — so 22 and 33 are factors
- 726 ÷ 23 = 31.565 — not a whole number
- 726 ÷ 24 = 30.25 — not a whole number
- 726 ÷ 25 = 29.04 — not a whole number
- 726 ÷ 26 = 27.923 — not a whole number
Collecting both numbers from every successful division gives the complete list: 1, 2, 3, 6, 11, 22, 33, 66, 121, 242, 363 and 726.
Prime factorization of 726
Divide by the smallest prime that fits, and keep going until the quotient is 1:
The primes you divided by give 726 = 2 × 3 × 11². From the exponents you can also count the factors without listing them: (1 + 1) × (1 + 1) × (2 + 1) = 12.
Properties of 726
- 726 is a composite number.
- The sum of all its factors is 1,596; the sum of its proper factors (excluding 726) is 870, which makes it a abundant number (its proper factors add up to more than itself).
- 726 is not a perfect square, so its factors pair up evenly.
- Multiples of 726 include 1,452, 2,178, 2,904, 3,630 and so on.
Factors vs. multiples
Factors of 726 are the numbers that divide into it; multiples of 726 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 726?
The factors of 726 are 1, 2, 3, 6, 11, 22, 33, 66, 121, 242, 363 and 726. Each of these divides 726 with no remainder.
How many factors does 726 have?
726 has 12 positive factors, which form 6 factor pairs. Counting negative factors as well doubles that to 24.
What is the prime factorization of 726?
726 = 2 × 3 × 11². Its distinct prime factors are 2, 3 and 11.
Is 726 a prime number?
No. 726 is composite because it has 12 factors, more than the two a prime number has.