What is the Greatest Common Factor of 66490 and 66509?

Greatest common factor (GCF) of 66490 and 66509 is 1.

GCF(66490,66509) = 1

We will now calculate the prime factors of 66490 and 66509, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66490 and 66509.

How to find the GCF of 66490 and 66509?

We will first find the prime factorization of 66490 and 66509. After we will calculate the factors of 66490 and 66509 and find the biggest common factor number .

Step-1: Prime Factorization of 66490

Prime factors of 66490 are 2, 5, 61, 109. Prime factorization of 66490 in exponential form is:

66490 = 2¹ × 5¹ × 61¹ × 109¹

Step-2: Prime Factorization of 66509

Prime factors of 66509 are 66509. Prime factorization of 66509 in exponential form is:

66509 = 66509¹

Step-3: Factors of 66490

List of positive integer factors of 66490 that divides 66490 without a remainder.

1, 2, 5, 10, 61, 109, 122, 218, 305, 545, 610, 1090, 6649, 13298, 33245

Step-4: Factors of 66509

List of positive integer factors of 66509 that divides 66490 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66490 and 66509. The biggest common factor number is the GCF number.
So the greatest common factor 66490 and 66509 is 1.

Also check out the Least Common Multiple of 66490 and 66509