What is the Greatest Common Factor of 90561 and 90570?

Greatest common factor (GCF) of 90561 and 90570 is 3.

GCF(90561,90570) = 3

We will now calculate the prime factors of 90561 and 90570, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90561 and 90570.

How to find the GCF of 90561 and 90570?

We will first find the prime factorization of 90561 and 90570. After we will calculate the factors of 90561 and 90570 and find the biggest common factor number .

Step-1: Prime Factorization of 90561

Prime factors of 90561 are 3, 30187. Prime factorization of 90561 in exponential form is:

90561 = 3¹ × 30187¹

Step-2: Prime Factorization of 90570

Prime factors of 90570 are 2, 3, 5, 3019. Prime factorization of 90570 in exponential form is:

90570 = 2¹ × 3¹ × 5¹ × 3019¹

Step-3: Factors of 90561

List of positive integer factors of 90561 that divides 90561 without a remainder.

1, 3, 30187

Step-4: Factors of 90570

List of positive integer factors of 90570 that divides 90561 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 3019, 6038, 9057, 15095, 18114, 30190, 45285

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90561 and 90570. The biggest common factor number is the GCF number.
So the greatest common factor 90561 and 90570 is 3.

Also check out the Least Common Multiple of 90561 and 90570