What is the Greatest Common Factor of 1421 and 1439?

Greatest common factor (GCF) of 1421 and 1439 is 1.

GCF(1421,1439) = 1

We will now calculate the prime factors of 1421 and 1439, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1421 and 1439.

How to find the GCF of 1421 and 1439?

We will first find the prime factorization of 1421 and 1439. After we will calculate the factors of 1421 and 1439 and find the biggest common factor number .

Step-1: Prime Factorization of 1421

Prime factors of 1421 are 7, 29. Prime factorization of 1421 in exponential form is:

1421 = 7² × 29¹

Step-2: Prime Factorization of 1439

Prime factors of 1439 are 1439. Prime factorization of 1439 in exponential form is:

1439 = 1439¹

Step-3: Factors of 1421

List of positive integer factors of 1421 that divides 1421 without a remainder.

1, 7, 29, 49, 203

Step-4: Factors of 1439

List of positive integer factors of 1439 that divides 1421 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1421 and 1439. The biggest common factor number is the GCF number.
So the greatest common factor 1421 and 1439 is 1.

Also check out the Least Common Multiple of 1421 and 1439