What is the Greatest Common Factor of 77545 and 77558?

Greatest common factor (GCF) of 77545 and 77558 is 13.

GCF(77545,77558) = 13

We will now calculate the prime factors of 77545 and 77558, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77545 and 77558.

How to find the GCF of 77545 and 77558?

We will first find the prime factorization of 77545 and 77558. After we will calculate the factors of 77545 and 77558 and find the biggest common factor number .

Step-1: Prime Factorization of 77545

Prime factors of 77545 are 5, 13, 1193. Prime factorization of 77545 in exponential form is:

77545 = 5¹ × 13¹ × 1193¹

Step-2: Prime Factorization of 77558

Prime factors of 77558 are 2, 13, 19, 157. Prime factorization of 77558 in exponential form is:

77558 = 2¹ × 13¹ × 19¹ × 157¹

Step-3: Factors of 77545

List of positive integer factors of 77545 that divides 77545 without a remainder.

1, 5, 13, 65, 1193, 5965, 15509

Step-4: Factors of 77558

List of positive integer factors of 77558 that divides 77545 without a remainder.

1, 2, 13, 19, 26, 38, 157, 247, 314, 494, 2041, 2983, 4082, 5966, 38779

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77545 and 77558. The biggest common factor number is the GCF number.
So the greatest common factor 77545 and 77558 is 13.

Also check out the Least Common Multiple of 77545 and 77558