What is the Greatest Common Factor of 78520 and 78531?

Greatest common factor (GCF) of 78520 and 78531 is 1.

GCF(78520,78531) = 1

We will now calculate the prime factors of 78520 and 78531, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78520 and 78531.

How to find the GCF of 78520 and 78531?

We will first find the prime factorization of 78520 and 78531. After we will calculate the factors of 78520 and 78531 and find the biggest common factor number .

Step-1: Prime Factorization of 78520

Prime factors of 78520 are 2, 5, 13, 151. Prime factorization of 78520 in exponential form is:

78520 = 2³ × 5¹ × 13¹ × 151¹

Step-2: Prime Factorization of 78531

Prime factors of 78531 are 3, 26177. Prime factorization of 78531 in exponential form is:

78531 = 3¹ × 26177¹

Step-3: Factors of 78520

List of positive integer factors of 78520 that divides 78520 without a remainder.

1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 520, 604, 755, 1208, 1510, 1963, 3020, 3926, 6040, 7852, 9815, 15704, 19630, 39260

Step-4: Factors of 78531

List of positive integer factors of 78531 that divides 78520 without a remainder.

1, 3, 26177

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78520 and 78531. The biggest common factor number is the GCF number.
So the greatest common factor 78520 and 78531 is 1.

Also check out the Least Common Multiple of 78520 and 78531