What is the Greatest Common Factor of 78846 and 78861?

Greatest common factor (GCF) of 78846 and 78861 is 3.

GCF(78846,78861) = 3

We will now calculate the prime factors of 78846 and 78861, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78846 and 78861.

How to find the GCF of 78846 and 78861?

We will first find the prime factorization of 78846 and 78861. After we will calculate the factors of 78846 and 78861 and find the biggest common factor number .

Step-1: Prime Factorization of 78846

Prime factors of 78846 are 2, 3, 17, 773. Prime factorization of 78846 in exponential form is:

78846 = 2¹ × 3¹ × 17¹ × 773¹

Step-2: Prime Factorization of 78861

Prime factors of 78861 are 3, 97, 271. Prime factorization of 78861 in exponential form is:

78861 = 3¹ × 97¹ × 271¹

Step-3: Factors of 78846

List of positive integer factors of 78846 that divides 78846 without a remainder.

1, 2, 3, 6, 17, 34, 51, 102, 773, 1546, 2319, 4638, 13141, 26282, 39423

Step-4: Factors of 78861

List of positive integer factors of 78861 that divides 78846 without a remainder.

1, 3, 97, 271, 291, 813, 26287

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78846 and 78861. The biggest common factor number is the GCF number.
So the greatest common factor 78846 and 78861 is 3.

Also check out the Least Common Multiple of 78846 and 78861