# What Is The Prime Factorization Of 90

Factors of 90 are the numbers, which gives the result as 90 when multiplied together in pair of two. The factor of 90 can be positive or negative.

By using the smallest prime 2 divided by 90.

$$\frac{90}{2} = 45$$

The smallest prime will not go into 45, so dividing by the next smallest prime, 3

$$\frac{45}{3} = 15$$

Here 15 is also divisible by 3, so divide again.

$$\frac{15}{3} = 5$$

5 is a prime number, so the prime factors of 90 are 2 * 3 * 3 * 5

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