What is the Greatest Common Factor of 61509 and 61513?

Greatest common factor (GCF) of 61509 and 61513 is 1.

GCF(61509,61513) = 1

We will now calculate the prime factors of 61509 and 61513, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61509 and 61513.

How to find the GCF of 61509 and 61513?

We will first find the prime factorization of 61509 and 61513. After we will calculate the factors of 61509 and 61513 and find the biggest common factor number .

Step-1: Prime Factorization of 61509

Prime factors of 61509 are 3, 7, 29, 101. Prime factorization of 61509 in exponential form is:

61509 = 3¹ × 7¹ × 29¹ × 101¹

Step-2: Prime Factorization of 61513

Prime factors of 61513 are 137, 449. Prime factorization of 61513 in exponential form is:

61513 = 137¹ × 449¹

Step-3: Factors of 61509

List of positive integer factors of 61509 that divides 61509 without a remainder.

1, 3, 7, 21, 29, 87, 101, 203, 303, 609, 707, 2121, 2929, 8787, 20503

Step-4: Factors of 61513

List of positive integer factors of 61513 that divides 61509 without a remainder.

1, 137, 449

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61509 and 61513. The biggest common factor number is the GCF number.
So the greatest common factor 61509 and 61513 is 1.

Also check out the Least Common Multiple of 61509 and 61513