What is the Greatest Common Factor of 21113 and 21120?

Greatest common factor (GCF) of 21113 and 21120 is 1.

GCF(21113,21120) = 1

We will now calculate the prime factors of 21113 and 21120, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21113 and 21120.

How to find the GCF of 21113 and 21120?

We will first find the prime factorization of 21113 and 21120. After we will calculate the factors of 21113 and 21120 and find the biggest common factor number .

Step-1: Prime Factorization of 21113

Prime factors of 21113 are 43, 491. Prime factorization of 21113 in exponential form is:

21113 = 43¹ × 491¹

Step-2: Prime Factorization of 21120

Prime factors of 21120 are 2, 3, 5, 11. Prime factorization of 21120 in exponential form is:

21120 = 2⁷ × 3¹ × 5¹ × 11¹

Step-3: Factors of 21113

List of positive integer factors of 21113 that divides 21113 without a remainder.

1, 43, 491

Step-4: Factors of 21120

List of positive integer factors of 21120 that divides 21113 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 264, 320, 330, 352, 384, 440, 480, 528, 640, 660, 704, 880, 960, 1056, 1320, 1408, 1760, 1920, 2112, 2640, 3520, 4224, 5280, 7040, 10560

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21113 and 21120. The biggest common factor number is the GCF number.
So the greatest common factor 21113 and 21120 is 1.

Also check out the Least Common Multiple of 21113 and 21120