What is the Greatest Common Factor of 18644 and 18660?

Greatest common factor (GCF) of 18644 and 18660 is 4.

GCF(18644,18660) = 4

We will now calculate the prime factors of 18644 and 18660, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18644 and 18660.

How to find the GCF of 18644 and 18660?

We will first find the prime factorization of 18644 and 18660. After we will calculate the factors of 18644 and 18660 and find the biggest common factor number .

Step-1: Prime Factorization of 18644

Prime factors of 18644 are 2, 59, 79. Prime factorization of 18644 in exponential form is:

18644 = 2² × 59¹ × 79¹

Step-2: Prime Factorization of 18660

Prime factors of 18660 are 2, 3, 5, 311. Prime factorization of 18660 in exponential form is:

18660 = 2² × 3¹ × 5¹ × 311¹

Step-3: Factors of 18644

List of positive integer factors of 18644 that divides 18644 without a remainder.

1, 2, 4, 59, 79, 118, 158, 236, 316, 4661, 9322

Step-4: Factors of 18660

List of positive integer factors of 18660 that divides 18644 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 311, 622, 933, 1244, 1555, 1866, 3110, 3732, 4665, 6220, 9330

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18644 and 18660. The biggest common factor number is the GCF number.
So the greatest common factor 18644 and 18660 is 4.

Also check out the Least Common Multiple of 18644 and 18660