What is the Greatest Common Factor of 47139 and 47157?

Greatest common factor (GCF) of 47139 and 47157 is 3.

GCF(47139,47157) = 3

We will now calculate the prime factors of 47139 and 47157, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 47139 and 47157.

How to find the GCF of 47139 and 47157?

We will first find the prime factorization of 47139 and 47157. After we will calculate the factors of 47139 and 47157 and find the biggest common factor number .

Step-1: Prime Factorization of 47139

Prime factors of 47139 are 3, 19, 827. Prime factorization of 47139 in exponential form is:

47139 = 3¹ × 19¹ × 827¹

Step-2: Prime Factorization of 47157

Prime factors of 47157 are 3, 11, 1429. Prime factorization of 47157 in exponential form is:

47157 = 3¹ × 11¹ × 1429¹

Step-3: Factors of 47139

List of positive integer factors of 47139 that divides 47139 without a remainder.

1, 3, 19, 57, 827, 2481, 15713

Step-4: Factors of 47157

List of positive integer factors of 47157 that divides 47139 without a remainder.

1, 3, 11, 33, 1429, 4287, 15719

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 47139 and 47157. The biggest common factor number is the GCF number.
So the greatest common factor 47139 and 47157 is 3.

Also check out the Least Common Multiple of 47139 and 47157