Factors of 238

238 has 8 factors: 1, 2, 7, 14, 17, 34, 119 and 238. Its prime factorization is 2 × 7 × 17.

Factor pairs of 238

Factor×FactorProduct
1×238238
2×119238
7×34238
14×17238

Negative pairs work too: (−1) × (−238), (−2) × (−119), … = 238.

Number of factors
8
Factor pairs
4
Sum of factors
432
Prime or composite
Composite
Even or odd
Even
Perfect square
No
Prime factorization 2 × 7 × 17

How to find the factors of 238

Test every whole number from 1 up to the square root of 238 (√238 ≈ 15.427). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 238 ÷ 1 = 238 — so 1 and 238 are factors
  • 238 ÷ 2 = 119 — so 2 and 119 are factors
  • 238 ÷ 3 = 79.333 — not a whole number
  • 238 ÷ 4 = 59.5 — not a whole number
  • 238 ÷ 5 = 47.6 — not a whole number
  • 238 ÷ 6 = 39.667 — not a whole number
  • 238 ÷ 7 = 34 — so 7 and 34 are factors
  • 238 ÷ 8 = 29.75 — not a whole number
  • 238 ÷ 9 = 26.444 — not a whole number
  • 238 ÷ 10 = 23.8 — not a whole number
  • 238 ÷ 11 = 21.636 — not a whole number
  • 238 ÷ 12 = 19.833 — not a whole number
  • 238 ÷ 13 = 18.308 — not a whole number
  • 238 ÷ 14 = 17 — so 14 and 17 are factors
  • 238 ÷ 15 = 15.867 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 2, 7, 14, 17, 34, 119 and 238.

Prime factorization of 238

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

238 ÷ 2 = 119
119 ÷ 7 = 17
17 ÷ 17 = 1

The primes you divided by give 238 = 2 × 7 × 17. From the exponents you can also count the factors without listing them: (1 + 1) × (1 + 1) × (1 + 1) = 8.

Properties of 238

  • 238 is a composite number.
  • The sum of all its factors is 432; the sum of its proper factors (excluding 238) is 194, which makes it a deficient number (its proper factors add up to less than itself).
  • 238 is not a perfect square, so its factors pair up evenly.
  • Multiples of 238 include 476, 714, 952, 1,190 and so on.

Factors vs. multiples

Factors of 238 are the numbers that divide into it; multiples of 238 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 238?

The factors of 238 are 1, 2, 7, 14, 17, 34, 119 and 238. Each of these divides 238 with no remainder.

How many factors does 238 have?

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

What is the prime factorization of 238?

238 = 2 × 7 × 17. Its distinct prime factors are 2, 7 and 17.

Is 238 a prime number?

No. 238 is composite because it has 8 factors, more than the two a prime number has.