What is the Greatest Common Factor of 66320 and 66340?

Greatest common factor (GCF) of 66320 and 66340 is 20.

GCF(66320,66340) = 20

We will now calculate the prime factors of 66320 and 66340, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66320 and 66340.

How to find the GCF of 66320 and 66340?

We will first find the prime factorization of 66320 and 66340. After we will calculate the factors of 66320 and 66340 and find the biggest common factor number .

Step-1: Prime Factorization of 66320

Prime factors of 66320 are 2, 5, 829. Prime factorization of 66320 in exponential form is:

66320 = 2⁴ × 5¹ × 829¹

Step-2: Prime Factorization of 66340

Prime factors of 66340 are 2, 5, 31, 107. Prime factorization of 66340 in exponential form is:

66340 = 2² × 5¹ × 31¹ × 107¹

Step-3: Factors of 66320

List of positive integer factors of 66320 that divides 66320 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 829, 1658, 3316, 4145, 6632, 8290, 13264, 16580, 33160

Step-4: Factors of 66340

List of positive integer factors of 66340 that divides 66320 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 107, 124, 155, 214, 310, 428, 535, 620, 1070, 2140, 3317, 6634, 13268, 16585, 33170

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66320 and 66340. The biggest common factor number is the GCF number.
So the greatest common factor 66320 and 66340 is 20.

Also check out the Least Common Multiple of 66320 and 66340