GCD of 857, 687, 729, 123 Calculator

Given Input numbers are 857, 687, 729, 123

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

Divisors of 857 :

The positive integer divisors of 857 that completely divides 857 are.

1, 857

Divisors of 687 :

The positive integer divisors of 687 that completely divides 687 are.

1, 3, 229, 687

Divisors of 729 :

The positive integer divisors of 729 that completely divides 729 are.

1, 3, 9, 27, 81, 243, 729

Divisors of 123 :

The positive integer divisors of 123 that completely divides 123 are.

1, 3, 41, 123

GCD of numbers is the greatest common divisor

So, the GCD (857, 687, 729, 123) = 1.

Given numbers are 857, 687, 729, 123

The list of prime factors of all numbers are

Prime factors of 857 are 857

Prime factors of 687 are 3 x 229

Prime factors of 729 are 3 x 3 x 3 x 3 x 3 x 3

Prime factors of 123 are 3 x 41

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

Given numbers are 857, 687, 729, 123

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

Apply this formula for all numbers.

Step1:

LCM(857, 687) = 588759

GCD(857, 687) = ( 857 x 687 ) / 588759

= 857 / 687

= 857

Step2:

LCM(1, 729) = 729

GCD(1, 729) = ( 1 x 729 ) / 729

= 1 / 729

= 1

Step3:

LCM(1, 123) = 123

GCD(1, 123) = ( 1 x 123 ) / 123

= 1 / 123

= 1

So, Greatest Common Divisor of 857, 687, 729, 123 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 780, 532, 835, 243
• GCD of 565, 238, 940, 484
• GCD of 305, 783, 302, 154
• GCD of 259, 569, 750, 203
• GCD of 283, 521, 375, 107

Given numbers are 857, 687, 729, 123
The greatest common divisor of numbers 857, 687, 729, 123 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 857, 687, 729, 123 is 1.

1. What is the GCD of 857, 687, 729, 123?

GCD of given numbers 857, 687, 729, 123 is 1

2. How to calculate the greatest common divisor of 857, 687, 729, 123?

We can find the highest common divisor of 857, 687, 729, 123 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 857, 687, 729, 123 i.e 1.

3. How can I use the GCD of 857, 687, 729, 123Calculator?

Out the numbers 857, 687, 729, 123 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.