GCD of 865, 643, 126, 180 Calculator

Given Input numbers are 865, 643, 126, 180

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

Divisors of 865 :

The positive integer divisors of 865 that completely divides 865 are.

1, 5, 173, 865

Divisors of 643 :

The positive integer divisors of 643 that completely divides 643 are.

1, 643

Divisors of 126 :

The positive integer divisors of 126 that completely divides 126 are.

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126

Divisors of 180 :

The positive integer divisors of 180 that completely divides 180 are.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180

GCD of numbers is the greatest common divisor

So, the GCD (865, 643, 126, 180) = 1.

Given numbers are 865, 643, 126, 180

The list of prime factors of all numbers are

Prime factors of 865 are 5 x 173

Prime factors of 643 are 643

Prime factors of 126 are 2 x 3 x 3 x 7

Prime factors of 180 are 2 x 2 x 3 x 3 x 5

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

Given numbers are 865, 643, 126, 180

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

Apply this formula for all numbers.

Step1:

LCM(865, 643) = 556195

GCD(865, 643) = ( 865 x 643 ) / 556195

= 865 / 643

= 865

Step2:

LCM(1, 126) = 126

GCD(1, 126) = ( 1 x 126 ) / 126

= 1 / 126

= 1

Step3:

LCM(1, 180) = 180

GCD(1, 180) = ( 1 x 180 ) / 180

= 1 / 180

= 1

So, Greatest Common Divisor of 865, 643, 126, 180 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 581, 803, 733, 673
• GCD of 182, 293, 471, 721
• GCD of 653, 753, 573, 936
• GCD of 370, 214, 135, 511
• GCD of 759, 510, 510, 136

Given numbers are 865, 643, 126, 180
The greatest common divisor of numbers 865, 643, 126, 180 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 865, 643, 126, 180 is 1.

1. What is the GCD of 865, 643, 126, 180?

GCD of given numbers 865, 643, 126, 180 is 1

2. How to calculate the greatest common divisor of 865, 643, 126, 180?

We can find the highest common divisor of 865, 643, 126, 180 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 865, 643, 126, 180 i.e 1.

3. How can I use the GCD of 865, 643, 126, 180Calculator?

Out the numbers 865, 643, 126, 180 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.