What is the Greatest Common Factor of 1538 and 1553?

Greatest common factor (GCF) of 1538 and 1553 is 1.

GCF(1538,1553) = 1

We will now calculate the prime factors of 1538 and 1553, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1538 and 1553.

How to find the GCF of 1538 and 1553?

We will first find the prime factorization of 1538 and 1553. After we will calculate the factors of 1538 and 1553 and find the biggest common factor number .

Step-1: Prime Factorization of 1538

Prime factors of 1538 are 2, 769. Prime factorization of 1538 in exponential form is:

1538 = 2¹ × 769¹

Step-2: Prime Factorization of 1553

Prime factors of 1553 are 1553. Prime factorization of 1553 in exponential form is:

1553 = 1553¹

Step-3: Factors of 1538

List of positive integer factors of 1538 that divides 1538 without a remainder.

1, 2, 769

Step-4: Factors of 1553

List of positive integer factors of 1553 that divides 1538 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1538 and 1553. The biggest common factor number is the GCF number.
So the greatest common factor 1538 and 1553 is 1.

Also check out the Least Common Multiple of 1538 and 1553