What is the Greatest Common Factor of 78403 and 78416?

Greatest common factor (GCF) of 78403 and 78416 is 13.

GCF(78403,78416) = 13

We will now calculate the prime factors of 78403 and 78416, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78403 and 78416.

How to find the GCF of 78403 and 78416?

We will first find the prime factorization of 78403 and 78416. After we will calculate the factors of 78403 and 78416 and find the biggest common factor number .

Step-1: Prime Factorization of 78403

Prime factors of 78403 are 13, 37, 163. Prime factorization of 78403 in exponential form is:

78403 = 13¹ × 37¹ × 163¹

Step-2: Prime Factorization of 78416

Prime factors of 78416 are 2, 13, 29. Prime factorization of 78416 in exponential form is:

78416 = 2⁴ × 13² × 29¹

Step-3: Factors of 78403

List of positive integer factors of 78403 that divides 78403 without a remainder.

1, 13, 37, 163, 481, 2119, 6031

Step-4: Factors of 78416

List of positive integer factors of 78416 that divides 78403 without a remainder.

1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 116, 169, 208, 232, 338, 377, 464, 676, 754, 1352, 1508, 2704, 3016, 4901, 6032, 9802, 19604, 39208

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78403 and 78416. The biggest common factor number is the GCF number.
So the greatest common factor 78403 and 78416 is 13.

Also check out the Least Common Multiple of 78403 and 78416