What is the Greatest Common Factor of 66290 and 66305?

Greatest common factor (GCF) of 66290 and 66305 is 5.

GCF(66290,66305) = 5

We will now calculate the prime factors of 66290 and 66305, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66290 and 66305.

How to find the GCF of 66290 and 66305?

We will first find the prime factorization of 66290 and 66305. After we will calculate the factors of 66290 and 66305 and find the biggest common factor number .

Step-1: Prime Factorization of 66290

Prime factors of 66290 are 2, 5, 7, 947. Prime factorization of 66290 in exponential form is:

66290 = 2¹ × 5¹ × 7¹ × 947¹

Step-2: Prime Factorization of 66305

Prime factors of 66305 are 5, 89, 149. Prime factorization of 66305 in exponential form is:

66305 = 5¹ × 89¹ × 149¹

Step-3: Factors of 66290

List of positive integer factors of 66290 that divides 66290 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70, 947, 1894, 4735, 6629, 9470, 13258, 33145

Step-4: Factors of 66305

List of positive integer factors of 66305 that divides 66290 without a remainder.

1, 5, 89, 149, 445, 745, 13261

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66290 and 66305. The biggest common factor number is the GCF number.
So the greatest common factor 66290 and 66305 is 5.

Also check out the Least Common Multiple of 66290 and 66305