What is the Greatest Common Factor of 17902 and 17920?

Greatest common factor (GCF) of 17902 and 17920 is 2.

GCF(17902,17920) = 2

We will now calculate the prime factors of 17902 and 17920, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17902 and 17920.

How to find the GCF of 17902 and 17920?

We will first find the prime factorization of 17902 and 17920. After we will calculate the factors of 17902 and 17920 and find the biggest common factor number .

Step-1: Prime Factorization of 17902

Prime factors of 17902 are 2, 8951. Prime factorization of 17902 in exponential form is:

17902 = 2¹ × 8951¹

Step-2: Prime Factorization of 17920

Prime factors of 17920 are 2, 5, 7. Prime factorization of 17920 in exponential form is:

17920 = 2⁹ × 5¹ × 7¹

Step-3: Factors of 17902

List of positive integer factors of 17902 that divides 17902 without a remainder.

1, 2, 8951

Step-4: Factors of 17920

List of positive integer factors of 17920 that divides 17902 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 8960

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17902 and 17920. The biggest common factor number is the GCF number.
So the greatest common factor 17902 and 17920 is 2.

Also check out the Least Common Multiple of 17902 and 17920