Factors of 150

150 has 12 factors: 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75 and 150. Its prime factorization is 2 × 3 × 5².

Factor pairs of 150

Factor×FactorProduct
1×150150
2×75150
3×50150
5×30150
6×25150
10×15150

Negative pairs work too: (−1) × (−150), (−2) × (−75), … = 150.

Number of factors
12
Factor pairs
6
Sum of factors
372
Prime or composite
Composite
Even or odd
Even
Perfect square
No
Prime factorization 2 × 3 × 5²

How to find the factors of 150

Test every whole number from 1 up to the square root of 150 (√150 ≈ 12.247). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 150 ÷ 1 = 150 — so 1 and 150 are factors
  • 150 ÷ 2 = 75 — so 2 and 75 are factors
  • 150 ÷ 3 = 50 — so 3 and 50 are factors
  • 150 ÷ 4 = 37.5 — not a whole number
  • 150 ÷ 5 = 30 — so 5 and 30 are factors
  • 150 ÷ 6 = 25 — so 6 and 25 are factors
  • 150 ÷ 7 = 21.429 — not a whole number
  • 150 ÷ 8 = 18.75 — not a whole number
  • 150 ÷ 9 = 16.667 — not a whole number
  • 150 ÷ 10 = 15 — so 10 and 15 are factors
  • 150 ÷ 11 = 13.636 — not a whole number
  • 150 ÷ 12 = 12.5 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75 and 150.

Prime factorization of 150

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

150 ÷ 2 = 75
75 ÷ 3 = 25
25 ÷ 5 = 5
5 ÷ 5 = 1

The primes you divided by give 150 = 2 × 3 × 5². From the exponents you can also count the factors without listing them: (1 + 1) × (1 + 1) × (2 + 1) = 12.

Properties of 150

  • 150 is a composite number.
  • The sum of all its factors is 372; the sum of its proper factors (excluding 150) is 222, which makes it a abundant number (its proper factors add up to more than itself).
  • 150 is not a perfect square, so its factors pair up evenly.
  • Multiples of 150 include 300, 450, 600, 750 and so on.

Factors vs. multiples

Factors of 150 are the numbers that divide into it; multiples of 150 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 150?

The factors of 150 are 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75 and 150. Each of these divides 150 with no remainder.

How many factors does 150 have?

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

What is the prime factorization of 150?

150 = 2 × 3 × 5². Its distinct prime factors are 2, 3 and 5.

Is 150 a prime number?

No. 150 is composite because it has 12 factors, more than the two a prime number has.