What is the Greatest Common Factor of 5561 and 5565?

Greatest common factor (GCF) of 5561 and 5565 is 1.

GCF(5561,5565) = 1

We will now calculate the prime factors of 5561 and 5565, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 5561 and 5565.

How to find the GCF of 5561 and 5565?

We will first find the prime factorization of 5561 and 5565. After we will calculate the factors of 5561 and 5565 and find the biggest common factor number .

Step-1: Prime Factorization of 5561

Prime factors of 5561 are 67, 83. Prime factorization of 5561 in exponential form is:

5561 = 67¹ × 83¹

Step-2: Prime Factorization of 5565

Prime factors of 5565 are 3, 5, 7, 53. Prime factorization of 5565 in exponential form is:

5565 = 3¹ × 5¹ × 7¹ × 53¹

Step-3: Factors of 5561

List of positive integer factors of 5561 that divides 5561 without a remainder.

1, 67, 83

Step-4: Factors of 5565

List of positive integer factors of 5565 that divides 5561 without a remainder.

1, 3, 5, 7, 15, 21, 35, 53, 105, 159, 265, 371, 795, 1113, 1855

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 5561 and 5565. The biggest common factor number is the GCF number.
So the greatest common factor 5561 and 5565 is 1.

Also check out the Least Common Multiple of 5561 and 5565