What is the Greatest Common Factor of 17720 and 17738?

Greatest common factor (GCF) of 17720 and 17738 is 2.

GCF(17720,17738) = 2

We will now calculate the prime factors of 17720 and 17738, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17720 and 17738.

How to find the GCF of 17720 and 17738?

We will first find the prime factorization of 17720 and 17738. After we will calculate the factors of 17720 and 17738 and find the biggest common factor number .

Step-1: Prime Factorization of 17720

Prime factors of 17720 are 2, 5, 443. Prime factorization of 17720 in exponential form is:

17720 = 2³ × 5¹ × 443¹

Step-2: Prime Factorization of 17738

Prime factors of 17738 are 2, 7, 181. Prime factorization of 17738 in exponential form is:

17738 = 2¹ × 7² × 181¹

Step-3: Factors of 17720

List of positive integer factors of 17720 that divides 17720 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4430, 8860

Step-4: Factors of 17738

List of positive integer factors of 17738 that divides 17720 without a remainder.

1, 2, 7, 14, 49, 98, 181, 362, 1267, 2534, 8869

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17720 and 17738. The biggest common factor number is the GCF number.
So the greatest common factor 17720 and 17738 is 2.

Also check out the Least Common Multiple of 17720 and 17738