What is the Greatest Common Factor of 1128 and 1136?

Greatest common factor (GCF) of 1128 and 1136 is 8.

GCF(1128,1136) = 8

We will now calculate the prime factors of 1128 and 1136, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1128 and 1136.

How to find the GCF of 1128 and 1136?

We will first find the prime factorization of 1128 and 1136. After we will calculate the factors of 1128 and 1136 and find the biggest common factor number .

Step-1: Prime Factorization of 1128

Prime factors of 1128 are 2, 3, 47. Prime factorization of 1128 in exponential form is:

1128 = 2³ × 3¹ × 47¹

Step-2: Prime Factorization of 1136

Prime factors of 1136 are 2, 71. Prime factorization of 1136 in exponential form is:

1136 = 2⁴ × 71¹

Step-3: Factors of 1128

List of positive integer factors of 1128 that divides 1128 without a remainder.

1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 141, 188, 282, 376, 564

Step-4: Factors of 1136

List of positive integer factors of 1136 that divides 1128 without a remainder.

1, 2, 4, 8, 16, 71, 142, 284, 568

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1128 and 1136. The biggest common factor number is the GCF number.
So the greatest common factor 1128 and 1136 is 8.

Also check out the Least Common Multiple of 1128 and 1136