What is the Greatest Common Factor of 77158 and 77178?

Greatest common factor (GCF) of 77158 and 77178 is 2.

GCF(77158,77178) = 2

We will now calculate the prime factors of 77158 and 77178, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77158 and 77178.

How to find the GCF of 77158 and 77178?

We will first find the prime factorization of 77158 and 77178. After we will calculate the factors of 77158 and 77178 and find the biggest common factor number .

Step-1: Prime Factorization of 77158

Prime factors of 77158 are 2, 173, 223. Prime factorization of 77158 in exponential form is:

77158 = 2¹ × 173¹ × 223¹

Step-2: Prime Factorization of 77178

Prime factors of 77178 are 2, 3, 19, 677. Prime factorization of 77178 in exponential form is:

77178 = 2¹ × 3¹ × 19¹ × 677¹

Step-3: Factors of 77158

List of positive integer factors of 77158 that divides 77158 without a remainder.

1, 2, 173, 223, 346, 446, 38579

Step-4: Factors of 77178

List of positive integer factors of 77178 that divides 77158 without a remainder.

1, 2, 3, 6, 19, 38, 57, 114, 677, 1354, 2031, 4062, 12863, 25726, 38589

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77158 and 77178. The biggest common factor number is the GCF number.
So the greatest common factor 77158 and 77178 is 2.

Also check out the Least Common Multiple of 77158 and 77178