GCD of 861, 321, 655, 842 Calculator

Given Input numbers are 861, 321, 655, 842

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

Divisors of 861 :

The positive integer divisors of 861 that completely divides 861 are.

1, 3, 7, 21, 41, 123, 287, 861

Divisors of 321 :

The positive integer divisors of 321 that completely divides 321 are.

1, 3, 107, 321

Divisors of 655 :

The positive integer divisors of 655 that completely divides 655 are.

1, 5, 131, 655

Divisors of 842 :

The positive integer divisors of 842 that completely divides 842 are.

1, 2, 421, 842

GCD of numbers is the greatest common divisor

So, the GCD (861, 321, 655, 842) = 1.

Given numbers are 861, 321, 655, 842

The list of prime factors of all numbers are

Prime factors of 861 are 3 x 7 x 41

Prime factors of 321 are 3 x 107

Prime factors of 655 are 5 x 131

Prime factors of 842 are 2 x 421

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

Given numbers are 861, 321, 655, 842

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

Apply this formula for all numbers.

Step1:

LCM(861, 321) = 92127

GCD(861, 321) = ( 861 x 321 ) / 92127

= 861 / 321

= 861

Step2:

LCM(3, 655) = 1965

GCD(3, 655) = ( 3 x 655 ) / 1965

= 3 / 655

= 3

Step3:

LCM(1, 842) = 842

GCD(1, 842) = ( 1 x 842 ) / 842

= 1 / 842

= 1

So, Greatest Common Divisor of 861, 321, 655, 842 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 309, 196, 827, 748
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Given numbers are 861, 321, 655, 842
The greatest common divisor of numbers 861, 321, 655, 842 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 861, 321, 655, 842 is 1.

1. What is the GCD of 861, 321, 655, 842?

GCD of given numbers 861, 321, 655, 842 is 1

2. How to calculate the greatest common divisor of 861, 321, 655, 842?

We can find the highest common divisor of 861, 321, 655, 842 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 861, 321, 655, 842 i.e 1.

3. How can I use the GCD of 861, 321, 655, 842Calculator?

Out the numbers 861, 321, 655, 842 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.