Prime Factorization of 27

Find the prime factorization of 27. Express 27 as a product of prime numbers.

Prime factorization of
Answer: 27 = 3^3
Step-by-Step Solution
Step 1 Understand Prime Factorization

To find the prime factorization of 27, we need to express it as a product of prime numbers.


We do this by repeatedly dividing by the smallest prime that divides evenly, starting with 2.

A prime number is only divisible by 1 and itself (2, 3, 5, 7, 11, 13, ...).

Step 2 Check Divisibility by 2

27 is an odd number, so it is not divisible by 2.

We move on to check the next prime number: 3.

Step 3 Divide by 3

3 is a prime number that divides our current value. We can divide by 3 3 times:


27 ÷ 3 = 9
9 ÷ 3 = 3
3 ÷ 3 = 1

After dividing by 3, we have 1 remaining.

Step 4 Write the Prime Factorization

Now we combine all the prime factors we found:


Expanded form: 27 = 3 × 3 × 3


Exponential form: 27 = 3^3


We can verify: 3 × 3 × 3 = 27 ✓