GCD of 821, 646, 218, 507 Calculator

Given Input numbers are 821, 646, 218, 507

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

Divisors of 821 :

The positive integer divisors of 821 that completely divides 821 are.

1, 821

Divisors of 646 :

The positive integer divisors of 646 that completely divides 646 are.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 218 :

The positive integer divisors of 218 that completely divides 218 are.

1, 2, 109, 218

Divisors of 507 :

The positive integer divisors of 507 that completely divides 507 are.

1, 3, 13, 39, 169, 507

GCD of numbers is the greatest common divisor

So, the GCD (821, 646, 218, 507) = 1.

Given numbers are 821, 646, 218, 507

The list of prime factors of all numbers are

Prime factors of 821 are 821

Prime factors of 646 are 2 x 17 x 19

Prime factors of 218 are 2 x 109

Prime factors of 507 are 3 x 13 x 13

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

Given numbers are 821, 646, 218, 507

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

Apply this formula for all numbers.

Step1:

LCM(821, 646) = 530366

GCD(821, 646) = ( 821 x 646 ) / 530366

= 821 / 646

= 821

Step2:

LCM(1, 218) = 218

GCD(1, 218) = ( 1 x 218 ) / 218

= 1 / 218

= 1

Step3:

LCM(1, 507) = 507

GCD(1, 507) = ( 1 x 507 ) / 507

= 1 / 507

= 1

So, Greatest Common Divisor of 821, 646, 218, 507 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 313, 857, 499, 915
• GCD of 230, 881, 976, 754
• GCD of 734, 745, 388, 519
• GCD of 355, 759, 806, 832
• GCD of 446, 864, 414, 173

Given numbers are 821, 646, 218, 507
The greatest common divisor of numbers 821, 646, 218, 507 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 646, 218, 507 is 1.

1. What is the GCD of 821, 646, 218, 507?

GCD of given numbers 821, 646, 218, 507 is 1

2. How to calculate the greatest common divisor of 821, 646, 218, 507?

We can find the highest common divisor of 821, 646, 218, 507 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 821, 646, 218, 507 i.e 1.

3. How can I use the GCD of 821, 646, 218, 507Calculator?

Out the numbers 821, 646, 218, 507 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.