What is the Greatest Common Factor of 67220 and 67240?

Greatest common factor (GCF) of 67220 and 67240 is 20.

GCF(67220,67240) = 20

We will now calculate the prime factors of 67220 and 67240, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67220 and 67240.

How to find the GCF of 67220 and 67240?

We will first find the prime factorization of 67220 and 67240. After we will calculate the factors of 67220 and 67240 and find the biggest common factor number .

Step-1: Prime Factorization of 67220

Prime factors of 67220 are 2, 5, 3361. Prime factorization of 67220 in exponential form is:

67220 = 2² × 5¹ × 3361¹

Step-2: Prime Factorization of 67240

Prime factors of 67240 are 2, 5, 41. Prime factorization of 67240 in exponential form is:

67240 = 2³ × 5¹ × 41²

Step-3: Factors of 67220

List of positive integer factors of 67220 that divides 67220 without a remainder.

1, 2, 4, 5, 10, 20, 3361, 6722, 13444, 16805, 33610

Step-4: Factors of 67240

List of positive integer factors of 67240 that divides 67220 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1681, 3362, 6724, 8405, 13448, 16810, 33620

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67220 and 67240. The biggest common factor number is the GCF number.
So the greatest common factor 67220 and 67240 is 20.

Also check out the Least Common Multiple of 67220 and 67240