What is the Greatest Common Factor of 67781 and 67789?

Greatest common factor (GCF) of 67781 and 67789 is 1.

GCF(67781,67789) = 1

We will now calculate the prime factors of 67781 and 67789, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67781 and 67789.

How to find the GCF of 67781 and 67789?

We will first find the prime factorization of 67781 and 67789. After we will calculate the factors of 67781 and 67789 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 67789

Prime factors of 67789 are 67789. Prime factorization of 67789 in exponential form is:

67789 = 67789¹

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 67789

List of positive integer factors of 67789 that divides 67781 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67781 and 67789. The biggest common factor number is the GCF number.
So the greatest common factor 67781 and 67789 is 1.

Also check out the Least Common Multiple of 67781 and 67789