# What is the Greatest Common Factor of 102 and 106?

Greatest common factor (GCF) of 102 and 106 is **2**.

GCF(102,106) = 2

We will now calculate the prime factors of **102 and 106**, than find the greatest common factor *(greatest common divisor (gcd))* of the numbers by matching the biggest common factor of 102 and 106.

## How to find the GCF of 102 and 106?

We will first find the prime factorization of 102 and 106. After we will calculate the factors of 102 and 106 and find the biggest common factor number .

### Step-1: Prime Factorization of 102

Prime factors of 102 are 2, 3, 17. Prime factorization of **102** in exponential form is:

102 = 2^{1} × 3^{1} × 17^{1}

### Step-2: Prime Factorization of 106

Prime factors of 106 are 2, 53. Prime factorization of **106** in exponential form is:

106 = 2^{1} × 53^{1}

### Step-3: Factors of 102

List of positive integer factors of 102 that divides 102 without a remainder.

1, 2, 3, 6, 17, 34, 51

### Step-4: Factors of 106

List of positive integer factors of 106 that divides 102 without a remainder.

1, 2, 53

#### Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 102 and 106. The biggest common factor number is the **GCF** number.

So the **greatest common factor 102 and 106** is **2**.

Also check out the Least Common Multiple of 102 and 106

#### Related Greatest Common Factors of 102

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#### Related Greatest Common Factors of 106

- GCF of 106 and 110
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