# What is the Greatest Common Factor of 32 and 43?

Greatest common factor (GCF) of 32 and 43 is **1**.

GCF(32,43) = 1

We will now calculate the prime factors of **32 and 43**, than find the greatest common factor *(greatest common divisor (gcd))* of the numbers by matching the biggest common factor of 32 and 43.

## How to find the GCF of 32 and 43?

We will first find the prime factorization of 32 and 43. After we will calculate the factors of 32 and 43 and find the biggest common factor number .

### Step-1: Prime Factorization of 32

Prime factors of 32 are 2. Prime factorization of **32** in exponential form is:

32 = 2^{5}

### Step-2: Prime Factorization of 43

Prime factors of 43 are 43. Prime factorization of **43** in exponential form is:

43 = 43^{1}

### Step-3: Factors of 32

List of positive integer factors of 32 that divides 32 without a remainder.

1, 2, 4, 8, 16

### Step-4: Factors of 43

List of positive integer factors of 43 that divides 32 without a remainder.

1

#### Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 32 and 43. The biggest common factor number is the **GCF** number.

So the **greatest common factor 32 and 43** is **1**.

Also check out the Least Common Multiple of 32 and 43