What is the Greatest Common Factor of 78507 and 78518?

Greatest common factor (GCF) of 78507 and 78518 is 11.

GCF(78507,78518) = 11

We will now calculate the prime factors of 78507 and 78518, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78507 and 78518.

How to find the GCF of 78507 and 78518?

We will first find the prime factorization of 78507 and 78518. After we will calculate the factors of 78507 and 78518 and find the biggest common factor number .

Step-1: Prime Factorization of 78507

Prime factors of 78507 are 3, 11, 13, 61. Prime factorization of 78507 in exponential form is:

78507 = 3² × 11¹ × 13¹ × 61¹

Step-2: Prime Factorization of 78518

Prime factors of 78518 are 2, 11, 43, 83. Prime factorization of 78518 in exponential form is:

78518 = 2¹ × 11¹ × 43¹ × 83¹

Step-3: Factors of 78507

List of positive integer factors of 78507 that divides 78507 without a remainder.

1, 3, 9, 11, 13, 33, 39, 61, 99, 117, 143, 183, 429, 549, 671, 793, 1287, 2013, 2379, 6039, 7137, 8723, 26169

Step-4: Factors of 78518

List of positive integer factors of 78518 that divides 78507 without a remainder.

1, 2, 11, 22, 43, 83, 86, 166, 473, 913, 946, 1826, 3569, 7138, 39259

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78507 and 78518. The biggest common factor number is the GCF number.
So the greatest common factor 78507 and 78518 is 11.

Also check out the Least Common Multiple of 78507 and 78518