What is the Greatest Common Factor of 66220 and 66231?

Greatest common factor (GCF) of 66220 and 66231 is 11.

GCF(66220,66231) = 11

We will now calculate the prime factors of 66220 and 66231, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66220 and 66231.

How to find the GCF of 66220 and 66231?

We will first find the prime factorization of 66220 and 66231. After we will calculate the factors of 66220 and 66231 and find the biggest common factor number .

Step-1: Prime Factorization of 66220

Prime factors of 66220 are 2, 5, 7, 11, 43. Prime factorization of 66220 in exponential form is:

66220 = 2² × 5¹ × 7¹ × 11¹ × 43¹

Step-2: Prime Factorization of 66231

Prime factors of 66231 are 3, 11, 223. Prime factorization of 66231 in exponential form is:

66231 = 3³ × 11¹ × 223¹

Step-3: Factors of 66220

List of positive integer factors of 66220 that divides 66220 without a remainder.

1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 55, 70, 77, 86, 110, 140, 154, 172, 215, 220, 301, 308, 385, 430, 473, 602, 770, 860, 946, 1204, 1505, 1540, 1892, 2365, 3010, 3311, 4730, 6020, 6622, 9460, 13244, 16555, 33110

Step-4: Factors of 66231

List of positive integer factors of 66231 that divides 66220 without a remainder.

1, 3, 9, 11, 27, 33, 99, 223, 297, 669, 2007, 2453, 6021, 7359, 22077

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66220 and 66231. The biggest common factor number is the GCF number.
So the greatest common factor 66220 and 66231 is 11.

Also check out the Least Common Multiple of 66220 and 66231