GCD of 798, 465, 21, 856 Calculator

Given Input numbers are 798, 465, 21, 856

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

Divisors of 798 :

The positive integer divisors of 798 that completely divides 798 are.

1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798

Divisors of 465 :

The positive integer divisors of 465 that completely divides 465 are.

1, 3, 5, 15, 31, 93, 155, 465

Divisors of 21 :

The positive integer divisors of 21 that completely divides 21 are.

1, 3, 7, 21

Divisors of 856 :

The positive integer divisors of 856 that completely divides 856 are.

1, 2, 4, 8, 107, 214, 428, 856

GCD of numbers is the greatest common divisor

So, the GCD (798, 465, 21, 856) = 1.

Given numbers are 798, 465, 21, 856

The list of prime factors of all numbers are

Prime factors of 798 are 2 x 3 x 7 x 19

Prime factors of 465 are 3 x 5 x 31

Prime factors of 21 are 3 x 7

Prime factors of 856 are 2 x 2 x 2 x 107

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

Given numbers are 798, 465, 21, 856

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

Apply this formula for all numbers.

Step1:

LCM(798, 465) = 123690

GCD(798, 465) = ( 798 x 465 ) / 123690

= 798 / 465

= 798

Step2:

LCM(3, 21) = 21

GCD(3, 21) = ( 3 x 21 ) / 21

= 3 / 21

= 3

Step3:

LCM(3, 856) = 2568

GCD(3, 856) = ( 3 x 856 ) / 2568

= 3 / 856

= 3

So, Greatest Common Divisor of 798, 465, 21, 856 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 368, 186, 95, 738
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• GCD of 805, 786, 64, 194
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• GCD of 544, 675, 62, 778

Given numbers are 798, 465, 21, 856
The greatest common divisor of numbers 798, 465, 21, 856 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 798, 465, 21, 856 is 1.

1. What is the GCD of 798, 465, 21, 856?

GCD of given numbers 798, 465, 21, 856 is 1

2. How to calculate the greatest common divisor of 798, 465, 21, 856?

We can find the highest common divisor of 798, 465, 21, 856 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 798, 465, 21, 856 i.e 1.

3. How can I use the GCD of 798, 465, 21, 856Calculator?

Out the numbers 798, 465, 21, 856 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.