What is the Greatest Common Factor of 78885 and 78897?

Greatest common factor (GCF) of 78885 and 78897 is 3.

GCF(78885,78897) = 3

We will now calculate the prime factors of 78885 and 78897, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78885 and 78897.

How to find the GCF of 78885 and 78897?

We will first find the prime factorization of 78885 and 78897. After we will calculate the factors of 78885 and 78897 and find the biggest common factor number .

Step-1: Prime Factorization of 78885

Prime factors of 78885 are 3, 5, 1753. Prime factorization of 78885 in exponential form is:

78885 = 3² × 5¹ × 1753¹

Step-2: Prime Factorization of 78897

Prime factors of 78897 are 3, 7, 13, 17. Prime factorization of 78897 in exponential form is:

78897 = 3¹ × 7¹ × 13¹ × 17²

Step-3: Factors of 78885

List of positive integer factors of 78885 that divides 78885 without a remainder.

1, 3, 5, 9, 15, 45, 1753, 5259, 8765, 15777, 26295

Step-4: Factors of 78897

List of positive integer factors of 78897 that divides 78885 without a remainder.

1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 289, 357, 663, 867, 1547, 2023, 3757, 4641, 6069, 11271, 26299

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78885 and 78897. The biggest common factor number is the GCF number.
So the greatest common factor 78885 and 78897 is 3.

Also check out the Least Common Multiple of 78885 and 78897