# What is the Greatest Common Factor of 57 and 76?

Greatest common factor (GCF) of 57 and 76 is 19.

GCF(57,76) = 19

We will now calculate the prime factors of 57 and 76, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 57 and 76.

GCF Calculator and
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## How to find the GCF of 57 and 76?

We will first find the prime factorization of 57 and 76. After we will calculate the factors of 57 and 76 and find the biggest common factor number .

### Step-1: Prime Factorization of 57

Prime factors of 57 are 3, 19. Prime factorization of 57 in exponential form is:

57 = 31 × 191

### Step-2: Prime Factorization of 76

Prime factors of 76 are 2, 19. Prime factorization of 76 in exponential form is:

76 = 22 × 191

### Step-3: Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1, 3, 19

### Step-4: Factors of 76

List of positive integer factors of 76 that divides 57 without a remainder.

1, 2, 4, 19, 38

#### Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 57 and 76. The biggest common factor number is the GCF number.
So the greatest common factor 57 and 76 is 19.

Also check out the Least Common Multiple of 57 and 76