What is the Greatest Common Factor of 66409 and 66428?

Greatest common factor (GCF) of 66409 and 66428 is 1.

GCF(66409,66428) = 1

We will now calculate the prime factors of 66409 and 66428, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66409 and 66428.

How to find the GCF of 66409 and 66428?

We will first find the prime factorization of 66409 and 66428. After we will calculate the factors of 66409 and 66428 and find the biggest common factor number .

Step-1: Prime Factorization of 66409

Prime factors of 66409 are 7, 53, 179. Prime factorization of 66409 in exponential form is:

66409 = 7¹ × 53¹ × 179¹

Step-2: Prime Factorization of 66428

Prime factors of 66428 are 2, 16607. Prime factorization of 66428 in exponential form is:

66428 = 2² × 16607¹

Step-3: Factors of 66409

List of positive integer factors of 66409 that divides 66409 without a remainder.

1, 7, 53, 179, 371, 1253, 9487

Step-4: Factors of 66428

List of positive integer factors of 66428 that divides 66409 without a remainder.

1, 2, 4, 16607, 33214

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66409 and 66428. The biggest common factor number is the GCF number.
So the greatest common factor 66409 and 66428 is 1.

Also check out the Least Common Multiple of 66409 and 66428