What is the Greatest Common Factor of 78651 and 78655?

Greatest common factor (GCF) of 78651 and 78655 is 1.

GCF(78651,78655) = 1

We will now calculate the prime factors of 78651 and 78655, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78651 and 78655.

How to find the GCF of 78651 and 78655?

We will first find the prime factorization of 78651 and 78655. After we will calculate the factors of 78651 and 78655 and find the biggest common factor number .

Step-1: Prime Factorization of 78651

Prime factors of 78651 are 3, 971. Prime factorization of 78651 in exponential form is:

78651 = 3⁴ × 971¹

Step-2: Prime Factorization of 78655

Prime factors of 78655 are 5, 15731. Prime factorization of 78655 in exponential form is:

78655 = 5¹ × 15731¹

Step-3: Factors of 78651

List of positive integer factors of 78651 that divides 78651 without a remainder.

1, 3, 9, 27, 81, 971, 2913, 8739, 26217

Step-4: Factors of 78655

List of positive integer factors of 78655 that divides 78651 without a remainder.

1, 5, 15731

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78651 and 78655. The biggest common factor number is the GCF number.
So the greatest common factor 78651 and 78655 is 1.

Also check out the Least Common Multiple of 78651 and 78655