Question

G. C. D. of 243 and 198 is

Answer 1

Answer:

G. C. D. of 243 and 198 is 9.

Explanation:

243 = 3*3*3*3*3 = 3^5

198= 2*3*3*3*11 = 2*3^2*11

gcd : 3^2= 9

Answer 2

The Greatest Common Factor (GCF) for 243 and 198, notation GCD(243,198), is 9.

Explanation:

Greatest common divisor (GCD) of the two or more numbers is called greatest common factor number that divides them, exactly.

It is also known as the highest common factor (HCF).

The factors of 243 are 1,3,9,27,81,243;

The factors of 198 are 1,2,3,6,9,11,18,22,33,66,99,198.

So, as we can see, the Greatest Common Factor or Divisor is 9, because it is greatest number that can divide evenly into all of them.

Hence, The Greatest Common Factor (GCF) for 243 and 198, notation GCD(243,198), is 9.