Factors of 190

190 has 8 factors: 1, 2, 5, 10, 19, 38, 95 and 190. Its prime factorization is 2 × 5 × 19.

Factor pairs of 190

Factor×FactorProduct
1×190190
2×95190
5×38190
10×19190

Negative pairs work too: (−1) × (−190), (−2) × (−95), … = 190.

Number of factors
8
Factor pairs
4
Sum of factors
360
Prime or composite
Composite
Even or odd
Even
Perfect square
No
Prime factorization 2 × 5 × 19

How to find the factors of 190

Test every whole number from 1 up to the square root of 190 (√190 ≈ 13.784). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 190 ÷ 1 = 190 — so 1 and 190 are factors
  • 190 ÷ 2 = 95 — so 2 and 95 are factors
  • 190 ÷ 3 = 63.333 — not a whole number
  • 190 ÷ 4 = 47.5 — not a whole number
  • 190 ÷ 5 = 38 — so 5 and 38 are factors
  • 190 ÷ 6 = 31.667 — not a whole number
  • 190 ÷ 7 = 27.143 — not a whole number
  • 190 ÷ 8 = 23.75 — not a whole number
  • 190 ÷ 9 = 21.111 — not a whole number
  • 190 ÷ 10 = 19 — so 10 and 19 are factors
  • 190 ÷ 11 = 17.273 — not a whole number
  • 190 ÷ 12 = 15.833 — not a whole number
  • 190 ÷ 13 = 14.615 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 2, 5, 10, 19, 38, 95 and 190.

Prime factorization of 190

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

190 ÷ 2 = 95
95 ÷ 5 = 19
19 ÷ 19 = 1

The primes you divided by give 190 = 2 × 5 × 19. From the exponents you can also count the factors without listing them: (1 + 1) × (1 + 1) × (1 + 1) = 8.

Properties of 190

  • 190 is a composite number.
  • The sum of all its factors is 360; the sum of its proper factors (excluding 190) is 170, which makes it a deficient number (its proper factors add up to less than itself).
  • 190 is not a perfect square, so its factors pair up evenly.
  • Multiples of 190 include 380, 570, 760, 950 and so on.

Factors vs. multiples

Factors of 190 are the numbers that divide into it; multiples of 190 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 190?

The factors of 190 are 1, 2, 5, 10, 19, 38, 95 and 190. Each of these divides 190 with no remainder.

How many factors does 190 have?

190 has 8 positive factors, which form 4 factor pairs. Counting negative factors as well doubles that to 16.

What is the prime factorization of 190?

190 = 2 × 5 × 19. Its distinct prime factors are 2, 5 and 19.

Is 190 a prime number?

No. 190 is composite because it has 8 factors, more than the two a prime number has.