What is the Greatest Common Factor of 67768 and 67781?

Greatest common factor (GCF) of 67768 and 67781 is 1.

GCF(67768,67781) = 1

We will now calculate the prime factors of 67768 and 67781, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67768 and 67781.

How to find the GCF of 67768 and 67781?

We will first find the prime factorization of 67768 and 67781. After we will calculate the factors of 67768 and 67781 and find the biggest common factor number .

Step-1: Prime Factorization of 67768

Prime factors of 67768 are 2, 43, 197. Prime factorization of 67768 in exponential form is:

67768 = 2³ × 43¹ × 197¹

Step-2: 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-3: Factors of 67768

List of positive integer factors of 67768 that divides 67768 without a remainder.

1, 2, 4, 8, 43, 86, 172, 197, 344, 394, 788, 1576, 8471, 16942, 33884

Step-4: Factors of 67781

List of positive integer factors of 67781 that divides 67768 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67768 and 67781. The biggest common factor number is the GCF number.
So the greatest common factor 67768 and 67781 is 1.

Also check out the Least Common Multiple of 67768 and 67781