GCD of 165, 161, 691, 728 Calculator

Given Input numbers are 165, 161, 691, 728

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 161 :

The positive integer divisors of 161 that completely divides 161 are.

1, 7, 23, 161

Divisors of 691 :

The positive integer divisors of 691 that completely divides 691 are.

1, 691

Divisors of 728 :

The positive integer divisors of 728 that completely divides 728 are.

1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728

GCD of numbers is the greatest common divisor

So, the GCD (165, 161, 691, 728) = 1.

Given numbers are 165, 161, 691, 728

The list of prime factors of all numbers are

Prime factors of 165 are 3 x 5 x 11

Prime factors of 161 are 7 x 23

Prime factors of 691 are 691

Prime factors of 728 are 2 x 2 x 2 x 7 x 13

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

Given numbers are 165, 161, 691, 728

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

Apply this formula for all numbers.

Step1:

LCM(165, 161) = 26565

GCD(165, 161) = ( 165 x 161 ) / 26565

= 165 / 161

= 165

Step2:

LCM(1, 691) = 691

GCD(1, 691) = ( 1 x 691 ) / 691

= 1 / 691

= 1

Step3:

LCM(1, 728) = 728

GCD(1, 728) = ( 1 x 728 ) / 728

= 1 / 728

= 1

So, Greatest Common Divisor of 165, 161, 691, 728 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 749, 509, 526, 372
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• GCD of 228, 771, 699, 918
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• GCD of 709, 131, 684, 164

Given numbers are 165, 161, 691, 728
The greatest common divisor of numbers 165, 161, 691, 728 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 165, 161, 691, 728 is 1.

1. What is the GCD of 165, 161, 691, 728?

GCD of given numbers 165, 161, 691, 728 is 1

2. How to calculate the greatest common divisor of 165, 161, 691, 728?

We can find the highest common divisor of 165, 161, 691, 728 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, 161, 691, 728 i.e 1.

3. How can I use the GCD of 165, 161, 691, 728Calculator?

Out the numbers 165, 161, 691, 728 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.