What is the Greatest Common Factor of 76905 and 76921?

Greatest common factor (GCF) of 76905 and 76921 is 1.

GCF(76905,76921) = 1

We will now calculate the prime factors of 76905 and 76921, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 76905 and 76921.

How to find the GCF of 76905 and 76921?

We will first find the prime factorization of 76905 and 76921. After we will calculate the factors of 76905 and 76921 and find the biggest common factor number .

Step-1: Prime Factorization of 76905

Prime factors of 76905 are 3, 5, 1709. Prime factorization of 76905 in exponential form is:

76905 = 3² × 5¹ × 1709¹

Step-2: Prime Factorization of 76921

Prime factors of 76921 are 13, 61, 97. Prime factorization of 76921 in exponential form is:

76921 = 13¹ × 61¹ × 97¹

Step-3: Factors of 76905

List of positive integer factors of 76905 that divides 76905 without a remainder.

1, 3, 5, 9, 15, 45, 1709, 5127, 8545, 15381, 25635

Step-4: Factors of 76921

List of positive integer factors of 76921 that divides 76905 without a remainder.

1, 13, 61, 97, 793, 1261, 5917

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 76905 and 76921. The biggest common factor number is the GCF number.
So the greatest common factor 76905 and 76921 is 1.

Also check out the Least Common Multiple of 76905 and 76921