What is the Greatest Common Factor of 68140 and 68156?

Greatest common factor (GCF) of 68140 and 68156 is 4.

GCF(68140,68156) = 4

We will now calculate the prime factors of 68140 and 68156, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68140 and 68156.

How to find the GCF of 68140 and 68156?

We will first find the prime factorization of 68140 and 68156. After we will calculate the factors of 68140 and 68156 and find the biggest common factor number .

Step-1: Prime Factorization of 68140

Prime factors of 68140 are 2, 5, 3407. Prime factorization of 68140 in exponential form is:

68140 = 2² × 5¹ × 3407¹

Step-2: Prime Factorization of 68156

Prime factors of 68156 are 2, 11, 1549. Prime factorization of 68156 in exponential form is:

68156 = 2² × 11¹ × 1549¹

Step-3: Factors of 68140

List of positive integer factors of 68140 that divides 68140 without a remainder.

1, 2, 4, 5, 10, 20, 3407, 6814, 13628, 17035, 34070

Step-4: Factors of 68156

List of positive integer factors of 68156 that divides 68140 without a remainder.

1, 2, 4, 11, 22, 44, 1549, 3098, 6196, 17039, 34078

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68140 and 68156. The biggest common factor number is the GCF number.
So the greatest common factor 68140 and 68156 is 4.

Also check out the Least Common Multiple of 68140 and 68156