# What is the Greatest Common Factor of 151 and 162?

Greatest common factor (GCF) of 151 and 162 is 1.

GCF(151,162) = 1

We will now calculate the prime factors of 151 and 162, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 151 and 162.

GCF Calculator and
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## How to find the GCF of 151 and 162?

We will first find the prime factorization of 151 and 162. After we will calculate the factors of 151 and 162 and find the biggest common factor number .

### Step-1: Prime Factorization of 151

Prime factors of 151 are 151. Prime factorization of 151 in exponential form is:

151 = 1511

### Step-2: Prime Factorization of 162

Prime factors of 162 are 2, 3. Prime factorization of 162 in exponential form is:

162 = 21 × 34

### Step-3: Factors of 151

List of positive integer factors of 151 that divides 151 without a remainder.

1

### Step-4: Factors of 162

List of positive integer factors of 162 that divides 151 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 81

#### Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 151 and 162. The biggest common factor number is the GCF number.
So the greatest common factor 151 and 162 is 1.

Also check out the Least Common Multiple of 151 and 162