What is the Greatest Common Factor of 618 and 624?

Greatest common factor (GCF) of 618 and 624 is 6.

GCF(618,624) = 6

We will now calculate the prime factors of 618 and 624, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 618 and 624.

How to find the GCF of 618 and 624?

We will first find the prime factorization of 618 and 624. After we will calculate the factors of 618 and 624 and find the biggest common factor number .

Step-1: Prime Factorization of 618

Prime factors of 618 are 2, 3, 103. Prime factorization of 618 in exponential form is:

618 = 2¹ × 3¹ × 103¹

Step-2: Prime Factorization of 624

Prime factors of 624 are 2, 3, 13. Prime factorization of 624 in exponential form is:

624 = 2⁴ × 3¹ × 13¹

Step-3: Factors of 618

List of positive integer factors of 618 that divides 618 without a remainder.

1, 2, 3, 6, 103, 206, 309

Step-4: Factors of 624

List of positive integer factors of 624 that divides 618 without a remainder.

1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 618 and 624. The biggest common factor number is the GCF number.
So the greatest common factor 618 and 624 is 6.

Also check out the Least Common Multiple of 618 and 624