What is the Greatest Common Factor of 1556 and 1573?

Greatest common factor (GCF) of 1556 and 1573 is 1.

GCF(1556,1573) = 1

We will now calculate the prime factors of 1556 and 1573, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1556 and 1573.

How to find the GCF of 1556 and 1573?

We will first find the prime factorization of 1556 and 1573. After we will calculate the factors of 1556 and 1573 and find the biggest common factor number .

Step-1: Prime Factorization of 1556

Prime factors of 1556 are 2, 389. Prime factorization of 1556 in exponential form is:

1556 = 2² × 389¹

Step-2: Prime Factorization of 1573

Prime factors of 1573 are 11, 13. Prime factorization of 1573 in exponential form is:

1573 = 11² × 13¹

Step-3: Factors of 1556

List of positive integer factors of 1556 that divides 1556 without a remainder.

1, 2, 4, 389, 778

Step-4: Factors of 1573

List of positive integer factors of 1573 that divides 1556 without a remainder.

1, 11, 13, 121, 143

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1556 and 1573. The biggest common factor number is the GCF number.
So the greatest common factor 1556 and 1573 is 1.

Also check out the Least Common Multiple of 1556 and 1573