What is the Greatest Common Factor of 68145 and 68156?

Greatest common factor (GCF) of 68145 and 68156 is 11.

GCF(68145,68156) = 11

We will now calculate the prime factors of 68145 and 68156, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68145 and 68156.

How to find the GCF of 68145 and 68156?

We will first find the prime factorization of 68145 and 68156. After we will calculate the factors of 68145 and 68156 and find the biggest common factor number .

Step-1: Prime Factorization of 68145

Prime factors of 68145 are 3, 5, 7, 11, 59. Prime factorization of 68145 in exponential form is:

68145 = 3¹ × 5¹ × 7¹ × 11¹ × 59¹

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 68145

List of positive integer factors of 68145 that divides 68145 without a remainder.

1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 59, 77, 105, 165, 177, 231, 295, 385, 413, 649, 885, 1155, 1239, 1947, 2065, 3245, 4543, 6195, 9735, 13629, 22715

Step-4: Factors of 68156

List of positive integer factors of 68156 that divides 68145 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 68145 and 68156. The biggest common factor number is the GCF number.
So the greatest common factor 68145 and 68156 is 11.

Also check out the Least Common Multiple of 68145 and 68156