What is the Greatest Common Factor of 67781 and 67791?

Greatest common factor (GCF) of 67781 and 67791 is 1.

GCF(67781,67791) = 1

We will now calculate the prime factors of 67781 and 67791, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67781 and 67791.

How to find the GCF of 67781 and 67791?

We will first find the prime factorization of 67781 and 67791. After we will calculate the factors of 67781 and 67791 and find the biggest common factor number .

Step-1: Prime Factorization of 67781

Prime factors of 67781 are 7, 23, 421. Prime factorization of 67781 in exponential form is:

67781 = 7¹ × 23¹ × 421¹

Step-2: Prime Factorization of 67791

Prime factors of 67791 are 3, 59, 383. Prime factorization of 67791 in exponential form is:

67791 = 3¹ × 59¹ × 383¹

Step-3: Factors of 67781

List of positive integer factors of 67781 that divides 67781 without a remainder.

1, 7, 23, 161, 421, 2947, 9683

Step-4: Factors of 67791

List of positive integer factors of 67791 that divides 67781 without a remainder.

1, 3, 59, 177, 383, 1149, 22597

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67781 and 67791. The biggest common factor number is the GCF number.
So the greatest common factor 67781 and 67791 is 1.

Also check out the Least Common Multiple of 67781 and 67791