GCD of 165, 231, 217, 128 Calculator

Given Input numbers are 165, 231, 217, 128

In the factoring method, we have to find the divisors of all numbers

Divisors of 165 :

The positive integer divisors of 165 that completely divides 165 are.

1, 3, 5, 11, 15, 33, 55, 165

Divisors of 231 :

The positive integer divisors of 231 that completely divides 231 are.

1, 3, 7, 11, 21, 33, 77, 231

Divisors of 217 :

The positive integer divisors of 217 that completely divides 217 are.

1, 7, 31, 217

Divisors of 128 :

The positive integer divisors of 128 that completely divides 128 are.

1, 2, 4, 8, 16, 32, 64, 128

GCD of numbers is the greatest common divisor

So, the GCD (165, 231, 217, 128) = 1.

Given numbers are 165, 231, 217, 128

The list of prime factors of all numbers are

Prime factors of 165 are 3 x 5 x 11

Prime factors of 231 are 3 x 7 x 11

Prime factors of 217 are 7 x 31

Prime factors of 128 are 2 x 2 x 2 x 2 x 2 x 2 x 2

The above numbers do not have any common prime factor. So GCD is 1

Given numbers are 165, 231, 217, 128

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(165, 231) = 1155

GCD(165, 231) = ( 165 x 231 ) / 1155

= 165 / 231

= 165

Step2:

LCM(33, 217) = 7161

GCD(33, 217) = ( 33 x 217 ) / 7161

= 33 / 217

= 33

Step3:

LCM(1, 128) = 128

GCD(1, 128) = ( 1 x 128 ) / 128

= 1 / 128

= 1

So, Greatest Common Divisor of 165, 231, 217, 128 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 286, 824, 496, 359
• GCD of 462, 939, 460, 966
• GCD of 400, 163, 416, 504
• GCD of 670, 488, 452, 955
• GCD of 857, 473, 498, 370

Given numbers are 165, 231, 217, 128
The greatest common divisor of numbers 165, 231, 217, 128 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 165, 231, 217, 128 is 1.

1. What is the GCD of 165, 231, 217, 128?

GCD of given numbers 165, 231, 217, 128 is 1

2. How to calculate the greatest common divisor of 165, 231, 217, 128?

We can find the highest common divisor of 165, 231, 217, 128 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 165, 231, 217, 128 i.e 1.

3. How can I use the GCD of 165, 231, 217, 128Calculator?

Out the numbers 165, 231, 217, 128 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.