Factors of 160

160 has 12 factors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80 and 160. Its prime factorization is 2⁵ × 5.

Factor pairs of 160

Factor×FactorProduct
1×160160
2×80160
4×40160
5×32160
8×20160
10×16160

Negative pairs work too: (−1) × (−160), (−2) × (−80), … = 160.

Number of factors
12
Factor pairs
6
Sum of factors
378
Prime or composite
Composite
Even or odd
Even
Perfect square
No
Prime factorization 2⁵ × 5

How to find the factors of 160

Test every whole number from 1 up to the square root of 160 (√160 ≈ 12.649). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 160 ÷ 1 = 160 — so 1 and 160 are factors
  • 160 ÷ 2 = 80 — so 2 and 80 are factors
  • 160 ÷ 3 = 53.333 — not a whole number
  • 160 ÷ 4 = 40 — so 4 and 40 are factors
  • 160 ÷ 5 = 32 — so 5 and 32 are factors
  • 160 ÷ 6 = 26.667 — not a whole number
  • 160 ÷ 7 = 22.857 — not a whole number
  • 160 ÷ 8 = 20 — so 8 and 20 are factors
  • 160 ÷ 9 = 17.778 — not a whole number
  • 160 ÷ 10 = 16 — so 10 and 16 are factors
  • 160 ÷ 11 = 14.545 — not a whole number
  • 160 ÷ 12 = 13.333 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80 and 160.

Prime factorization of 160

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

160 ÷ 2 = 80
80 ÷ 2 = 40
40 ÷ 2 = 20
20 ÷ 2 = 10
10 ÷ 2 = 5
5 ÷ 5 = 1

The primes you divided by give 160 = 2⁵ × 5. From the exponents you can also count the factors without listing them: (5 + 1) × (1 + 1) = 12.

Properties of 160

  • 160 is a composite number.
  • The sum of all its factors is 378; the sum of its proper factors (excluding 160) is 218, which makes it a abundant number (its proper factors add up to more than itself).
  • 160 is not a perfect square, so its factors pair up evenly.
  • Multiples of 160 include 320, 480, 640, 800 and so on.

Factors vs. multiples

Factors of 160 are the numbers that divide into it; multiples of 160 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 160?

The factors of 160 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80 and 160. Each of these divides 160 with no remainder.

How many factors does 160 have?

160 has 12 positive factors, which form 6 factor pairs. Counting negative factors as well doubles that to 24.

What is the prime factorization of 160?

160 = 2⁵ × 5. Its distinct prime factors are 2 and 5.

Is 160 a prime number?

No. 160 is composite because it has 12 factors, more than the two a prime number has.