What is the Greatest Common Factor of 51405 and 51423?

Greatest common factor (GCF) of 51405 and 51423 is 3.

GCF(51405,51423) = 3

We will now calculate the prime factors of 51405 and 51423, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 51405 and 51423.

How to find the GCF of 51405 and 51423?

We will first find the prime factorization of 51405 and 51423. After we will calculate the factors of 51405 and 51423 and find the biggest common factor number .

Step-1: Prime Factorization of 51405

Prime factors of 51405 are 3, 5, 23, 149. Prime factorization of 51405 in exponential form is:

51405 = 3¹ × 5¹ × 23¹ × 149¹

Step-2: Prime Factorization of 51423

Prime factors of 51423 are 3, 61, 281. Prime factorization of 51423 in exponential form is:

51423 = 3¹ × 61¹ × 281¹

Step-3: Factors of 51405

List of positive integer factors of 51405 that divides 51405 without a remainder.

1, 3, 5, 15, 23, 69, 115, 149, 345, 447, 745, 2235, 3427, 10281, 17135

Step-4: Factors of 51423

List of positive integer factors of 51423 that divides 51405 without a remainder.

1, 3, 61, 183, 281, 843, 17141

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 51405 and 51423. The biggest common factor number is the GCF number.
So the greatest common factor 51405 and 51423 is 3.

Also check out the Least Common Multiple of 51405 and 51423