What is the Greatest Common Factor of 63405 and 63421?

Greatest common factor (GCF) of 63405 and 63421 is 1.

GCF(63405,63421) = 1

We will now calculate the prime factors of 63405 and 63421, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 63405 and 63421.

How to find the GCF of 63405 and 63421?

We will first find the prime factorization of 63405 and 63421. After we will calculate the factors of 63405 and 63421 and find the biggest common factor number .

Step-1: Prime Factorization of 63405

Prime factors of 63405 are 3, 5, 1409. Prime factorization of 63405 in exponential form is:

63405 = 3² × 5¹ × 1409¹

Step-2: Prime Factorization of 63421

Prime factors of 63421 are 63421. Prime factorization of 63421 in exponential form is:

63421 = 63421¹

Step-3: Factors of 63405

List of positive integer factors of 63405 that divides 63405 without a remainder.

1, 3, 5, 9, 15, 45, 1409, 4227, 7045, 12681, 21135

Step-4: Factors of 63421

List of positive integer factors of 63421 that divides 63405 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 63405 and 63421. The biggest common factor number is the GCF number.
So the greatest common factor 63405 and 63421 is 1.

Also check out the Least Common Multiple of 63405 and 63421