What is the Greatest Common Factor of 21021 and 21032?

Greatest common factor (GCF) of 21021 and 21032 is 11.

GCF(21021,21032) = 11

We will now calculate the prime factors of 21021 and 21032, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21021 and 21032.

How to find the GCF of 21021 and 21032?

We will first find the prime factorization of 21021 and 21032. After we will calculate the factors of 21021 and 21032 and find the biggest common factor number .

Step-1: Prime Factorization of 21021

Prime factors of 21021 are 3, 7, 11, 13. Prime factorization of 21021 in exponential form is:

21021 = 3¹ × 7² × 11¹ × 13¹

Step-2: Prime Factorization of 21032

Prime factors of 21032 are 2, 11, 239. Prime factorization of 21032 in exponential form is:

21032 = 2³ × 11¹ × 239¹

Step-3: Factors of 21021

List of positive integer factors of 21021 that divides 21021 without a remainder.

1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 231, 273, 429, 539, 637, 1001, 1617, 1911, 3003, 7007

Step-4: Factors of 21032

List of positive integer factors of 21032 that divides 21021 without a remainder.

1, 2, 4, 8, 11, 22, 44, 88, 239, 478, 956, 1912, 2629, 5258, 10516

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21021 and 21032. The biggest common factor number is the GCF number.
So the greatest common factor 21021 and 21032 is 11.

Also check out the Least Common Multiple of 21021 and 21032