What is the Greatest Common Factor of 78715 and 78722?

Greatest common factor (GCF) of 78715 and 78722 is 7.

GCF(78715,78722) = 7

We will now calculate the prime factors of 78715 and 78722, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78715 and 78722.

How to find the GCF of 78715 and 78722?

We will first find the prime factorization of 78715 and 78722. After we will calculate the factors of 78715 and 78722 and find the biggest common factor number .

Step-1: Prime Factorization of 78715

Prime factors of 78715 are 5, 7, 13, 173. Prime factorization of 78715 in exponential form is:

78715 = 5¹ × 7¹ × 13¹ × 173¹

Step-2: Prime Factorization of 78722

Prime factors of 78722 are 2, 7, 5623. Prime factorization of 78722 in exponential form is:

78722 = 2¹ × 7¹ × 5623¹

Step-3: Factors of 78715

List of positive integer factors of 78715 that divides 78715 without a remainder.

1, 5, 7, 13, 35, 65, 91, 173, 455, 865, 1211, 2249, 6055, 11245, 15743

Step-4: Factors of 78722

List of positive integer factors of 78722 that divides 78715 without a remainder.

1, 2, 7, 14, 5623, 11246, 39361

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78715 and 78722. The biggest common factor number is the GCF number.
So the greatest common factor 78715 and 78722 is 7.

Also check out the Least Common Multiple of 78715 and 78722