What is the Greatest Common Factor of 1421 and 1427?

Greatest common factor (GCF) of 1421 and 1427 is 1.

GCF(1421,1427) = 1

We will now calculate the prime factors of 1421 and 1427, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1421 and 1427.

How to find the GCF of 1421 and 1427?

We will first find the prime factorization of 1421 and 1427. After we will calculate the factors of 1421 and 1427 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 1427

Prime factors of 1427 are 1427. Prime factorization of 1427 in exponential form is:

1427 = 1427¹

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 1427

List of positive integer factors of 1427 that divides 1421 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1421 and 1427. The biggest common factor number is the GCF number.
So the greatest common factor 1421 and 1427 is 1.

Also check out the Least Common Multiple of 1421 and 1427