What is the Greatest Common Factor of 18620 and 18636?

Greatest common factor (GCF) of 18620 and 18636 is 4.

GCF(18620,18636) = 4

We will now calculate the prime factors of 18620 and 18636, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18620 and 18636.

How to find the GCF of 18620 and 18636?

We will first find the prime factorization of 18620 and 18636. After we will calculate the factors of 18620 and 18636 and find the biggest common factor number .

Step-1: Prime Factorization of 18620

Prime factors of 18620 are 2, 5, 7, 19. Prime factorization of 18620 in exponential form is:

18620 = 2² × 5¹ × 7² × 19¹

Step-2: Prime Factorization of 18636

Prime factors of 18636 are 2, 3, 1553. Prime factorization of 18636 in exponential form is:

18636 = 2² × 3¹ × 1553¹

Step-3: Factors of 18620

List of positive integer factors of 18620 that divides 18620 without a remainder.

1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4655, 9310

Step-4: Factors of 18636

List of positive integer factors of 18636 that divides 18620 without a remainder.

1, 2, 3, 4, 6, 12, 1553, 3106, 4659, 6212, 9318

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18620 and 18636. The biggest common factor number is the GCF number.
So the greatest common factor 18620 and 18636 is 4.

Also check out the Least Common Multiple of 18620 and 18636