What is the Greatest Common Factor of 1405 and 1423?

Greatest common factor (GCF) of 1405 and 1423 is 1.

GCF(1405,1423) = 1

We will now calculate the prime factors of 1405 and 1423, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1405 and 1423.

How to find the GCF of 1405 and 1423?

We will first find the prime factorization of 1405 and 1423. After we will calculate the factors of 1405 and 1423 and find the biggest common factor number .

Step-1: Prime Factorization of 1405

Prime factors of 1405 are 5, 281. Prime factorization of 1405 in exponential form is:

1405 = 5¹ × 281¹

Step-2: Prime Factorization of 1423

Prime factors of 1423 are 1423. Prime factorization of 1423 in exponential form is:

1423 = 1423¹

Step-3: Factors of 1405

List of positive integer factors of 1405 that divides 1405 without a remainder.

1, 5, 281

Step-4: Factors of 1423

List of positive integer factors of 1423 that divides 1405 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1405 and 1423. The biggest common factor number is the GCF number.
So the greatest common factor 1405 and 1423 is 1.

Also check out the Least Common Multiple of 1405 and 1423