What is the Greatest Common Factor of 23140 and 23156?

Greatest common factor (GCF) of 23140 and 23156 is 4.

GCF(23140,23156) = 4

We will now calculate the prime factors of 23140 and 23156, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 23140 and 23156.

How to find the GCF of 23140 and 23156?

We will first find the prime factorization of 23140 and 23156. After we will calculate the factors of 23140 and 23156 and find the biggest common factor number .

Step-1: Prime Factorization of 23140

Prime factors of 23140 are 2, 5, 13, 89. Prime factorization of 23140 in exponential form is:

23140 = 2² × 5¹ × 13¹ × 89¹

Step-2: Prime Factorization of 23156

Prime factors of 23156 are 2, 7, 827. Prime factorization of 23156 in exponential form is:

23156 = 2² × 7¹ × 827¹

Step-3: Factors of 23140

List of positive integer factors of 23140 that divides 23140 without a remainder.

1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2314, 4628, 5785, 11570

Step-4: Factors of 23156

List of positive integer factors of 23156 that divides 23140 without a remainder.

1, 2, 4, 7, 14, 28, 827, 1654, 3308, 5789, 11578

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 23140 and 23156. The biggest common factor number is the GCF number.
So the greatest common factor 23140 and 23156 is 4.

Also check out the Least Common Multiple of 23140 and 23156