What is the Greatest Common Factor of 1122 and 1139?

Greatest common factor (GCF) of 1122 and 1139 is 17.

GCF(1122,1139) = 17

We will now calculate the prime factors of 1122 and 1139, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1122 and 1139.

How to find the GCF of 1122 and 1139?

We will first find the prime factorization of 1122 and 1139. After we will calculate the factors of 1122 and 1139 and find the biggest common factor number .

Step-1: Prime Factorization of 1122

Prime factors of 1122 are 2, 3, 11, 17. Prime factorization of 1122 in exponential form is:

1122 = 2¹ × 3¹ × 11¹ × 17¹

Step-2: Prime Factorization of 1139

Prime factors of 1139 are 17, 67. Prime factorization of 1139 in exponential form is:

1139 = 17¹ × 67¹

Step-3: Factors of 1122

List of positive integer factors of 1122 that divides 1122 without a remainder.

1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 187, 374, 561

Step-4: Factors of 1139

List of positive integer factors of 1139 that divides 1122 without a remainder.

1, 17, 67

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1122 and 1139. The biggest common factor number is the GCF number.
So the greatest common factor 1122 and 1139 is 17.

Also check out the Least Common Multiple of 1122 and 1139