What is the Greatest Common Factor of 78668 and 78672?

Greatest common factor (GCF) of 78668 and 78672 is 4.

GCF(78668,78672) = 4

We will now calculate the prime factors of 78668 and 78672, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78668 and 78672.

How to find the GCF of 78668 and 78672?

We will first find the prime factorization of 78668 and 78672. After we will calculate the factors of 78668 and 78672 and find the biggest common factor number .

Step-1: Prime Factorization of 78668

Prime factors of 78668 are 2, 71, 277. Prime factorization of 78668 in exponential form is:

78668 = 2² × 71¹ × 277¹

Step-2: Prime Factorization of 78672

Prime factors of 78672 are 2, 3, 11, 149. Prime factorization of 78672 in exponential form is:

78672 = 2⁴ × 3¹ × 11¹ × 149¹

Step-3: Factors of 78668

List of positive integer factors of 78668 that divides 78668 without a remainder.

1, 2, 4, 71, 142, 277, 284, 554, 1108, 19667, 39334

Step-4: Factors of 78672

List of positive integer factors of 78672 that divides 78668 without a remainder.

1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 149, 176, 264, 298, 447, 528, 596, 894, 1192, 1639, 1788, 2384, 3278, 3576, 4917, 6556, 7152, 9834, 13112, 19668, 26224, 39336

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78668 and 78672. The biggest common factor number is the GCF number.
So the greatest common factor 78668 and 78672 is 4.

Also check out the Least Common Multiple of 78668 and 78672