What is the Greatest Common Factor of 51821 and 51828?

Greatest common factor (GCF) of 51821 and 51828 is 7.

GCF(51821,51828) = 7

We will now calculate the prime factors of 51821 and 51828, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 51821 and 51828.

How to find the GCF of 51821 and 51828?

We will first find the prime factorization of 51821 and 51828. After we will calculate the factors of 51821 and 51828 and find the biggest common factor number .

Step-1: Prime Factorization of 51821

Prime factors of 51821 are 7, 11, 673. Prime factorization of 51821 in exponential form is:

51821 = 7¹ × 11¹ × 673¹

Step-2: Prime Factorization of 51828

Prime factors of 51828 are 2, 3, 7, 617. Prime factorization of 51828 in exponential form is:

51828 = 2² × 3¹ × 7¹ × 617¹

Step-3: Factors of 51821

List of positive integer factors of 51821 that divides 51821 without a remainder.

1, 7, 11, 77, 673, 4711, 7403

Step-4: Factors of 51828

List of positive integer factors of 51828 that divides 51821 without a remainder.

1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 617, 1234, 1851, 2468, 3702, 4319, 7404, 8638, 12957, 17276, 25914

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 51821 and 51828. The biggest common factor number is the GCF number.
So the greatest common factor 51821 and 51828 is 7.

Also check out the Least Common Multiple of 51821 and 51828