What is the Greatest Common Factor of 2128 and 2147?

Greatest common factor (GCF) of 2128 and 2147 is 19.

GCF(2128,2147) = 19

We will now calculate the prime factors of 2128 and 2147, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2128 and 2147.

How to find the GCF of 2128 and 2147?

We will first find the prime factorization of 2128 and 2147. After we will calculate the factors of 2128 and 2147 and find the biggest common factor number .

Step-1: Prime Factorization of 2128

Prime factors of 2128 are 2, 7, 19. Prime factorization of 2128 in exponential form is:

2128 = 2⁴ × 7¹ × 19¹

Step-2: Prime Factorization of 2147

Prime factors of 2147 are 19, 113. Prime factorization of 2147 in exponential form is:

2147 = 19¹ × 113¹

Step-3: Factors of 2128

List of positive integer factors of 2128 that divides 2128 without a remainder.

1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064

Step-4: Factors of 2147

List of positive integer factors of 2147 that divides 2128 without a remainder.

1, 19, 113

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2128 and 2147. The biggest common factor number is the GCF number.
So the greatest common factor 2128 and 2147 is 19.

Also check out the Least Common Multiple of 2128 and 2147