# What is the Greatest Common Factor of 14 and 18?

Greatest common factor (GCF) of 14 and 18 is **2**.

GCF(14,18) = 2

We will now calculate the prime factors of **14 and 18**, than find the greatest common factor *(greatest common divisor (gcd))* of the numbers by matching the biggest common factor of 14 and 18.

## How to find the GCF of 14 and 18?

We will first find the prime factorization of 14 and 18. After we will calculate the factors of 14 and 18 and find the biggest common factor number .

### Step-1: Prime Factorization of 14

Prime factors of 14 are 2, 7. Prime factorization of **14** in exponential form is:

14 = 2^{1} × 7^{1}

### Step-2: Prime Factorization of 18

Prime factors of 18 are 2, 3. Prime factorization of **18** in exponential form is:

18 = 2^{1} × 3^{2}

### Step-3: Factors of 14

List of positive integer factors of 14 that divides 14 without a remainder.

1, 2, 7

### Step-4: Factors of 18

List of positive integer factors of 18 that divides 14 without a remainder.

1, 2, 3, 6, 9

#### Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 14 and 18. The biggest common factor number is the **GCF** number.

So the **greatest common factor 14 and 18** is **2**.

Also check out the Least Common Multiple of 14 and 18