What is the Greatest Common Factor of 77320 and 77340?

Greatest common factor (GCF) of 77320 and 77340 is 20.

GCF(77320,77340) = 20

We will now calculate the prime factors of 77320 and 77340, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77320 and 77340.

How to find the GCF of 77320 and 77340?

We will first find the prime factorization of 77320 and 77340. After we will calculate the factors of 77320 and 77340 and find the biggest common factor number .

Step-1: Prime Factorization of 77320

Prime factors of 77320 are 2, 5, 1933. Prime factorization of 77320 in exponential form is:

77320 = 2³ × 5¹ × 1933¹

Step-2: Prime Factorization of 77340

Prime factors of 77340 are 2, 3, 5, 1289. Prime factorization of 77340 in exponential form is:

77340 = 2² × 3¹ × 5¹ × 1289¹

Step-3: Factors of 77320

List of positive integer factors of 77320 that divides 77320 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1933, 3866, 7732, 9665, 15464, 19330, 38660

Step-4: Factors of 77340

List of positive integer factors of 77340 that divides 77320 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1289, 2578, 3867, 5156, 6445, 7734, 12890, 15468, 19335, 25780, 38670

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77320 and 77340. The biggest common factor number is the GCF number.
So the greatest common factor 77320 and 77340 is 20.

Also check out the Least Common Multiple of 77320 and 77340