What is the Greatest Common Factor of 77920 and 77932?

Greatest common factor (GCF) of 77920 and 77932 is 4.

GCF(77920,77932) = 4

We will now calculate the prime factors of 77920 and 77932, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77920 and 77932.

How to find the GCF of 77920 and 77932?

We will first find the prime factorization of 77920 and 77932. After we will calculate the factors of 77920 and 77932 and find the biggest common factor number .

Step-1: Prime Factorization of 77920

Prime factors of 77920 are 2, 5, 487. Prime factorization of 77920 in exponential form is:

77920 = 2⁵ × 5¹ × 487¹

Step-2: Prime Factorization of 77932

Prime factors of 77932 are 2, 19483. Prime factorization of 77932 in exponential form is:

77932 = 2² × 19483¹

Step-3: Factors of 77920

List of positive integer factors of 77920 that divides 77920 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 487, 974, 1948, 2435, 3896, 4870, 7792, 9740, 15584, 19480, 38960

Step-4: Factors of 77932

List of positive integer factors of 77932 that divides 77920 without a remainder.

1, 2, 4, 19483, 38966

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77920 and 77932. The biggest common factor number is the GCF number.
So the greatest common factor 77920 and 77932 is 4.

Also check out the Least Common Multiple of 77920 and 77932