What is the Greatest Common Factor of 1521 and 1541?

Greatest common factor (GCF) of 1521 and 1541 is 1.

GCF(1521,1541) = 1

We will now calculate the prime factors of 1521 and 1541, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1521 and 1541.

How to find the GCF of 1521 and 1541?

We will first find the prime factorization of 1521 and 1541. After we will calculate the factors of 1521 and 1541 and find the biggest common factor number .

Step-1: Prime Factorization of 1521

Prime factors of 1521 are 3, 13. Prime factorization of 1521 in exponential form is:

1521 = 3² × 13²

Step-2: Prime Factorization of 1541

Prime factors of 1541 are 23, 67. Prime factorization of 1541 in exponential form is:

1541 = 23¹ × 67¹

Step-3: Factors of 1521

List of positive integer factors of 1521 that divides 1521 without a remainder.

1, 3, 9, 13, 39, 117, 169, 507

Step-4: Factors of 1541

List of positive integer factors of 1541 that divides 1521 without a remainder.

1, 23, 67

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1521 and 1541. The biggest common factor number is the GCF number.
So the greatest common factor 1521 and 1541 is 1.

Also check out the Least Common Multiple of 1521 and 1541