GCD of 815, 664, 437, 821 Calculator

Given Input numbers are 815, 664, 437, 821

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

Divisors of 815 :

The positive integer divisors of 815 that completely divides 815 are.

1, 5, 163, 815

Divisors of 664 :

The positive integer divisors of 664 that completely divides 664 are.

1, 2, 4, 8, 83, 166, 332, 664

Divisors of 437 :

The positive integer divisors of 437 that completely divides 437 are.

1, 19, 23, 437

Divisors of 821 :

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

1, 821

GCD of numbers is the greatest common divisor

So, the GCD (815, 664, 437, 821) = 1.

Given numbers are 815, 664, 437, 821

The list of prime factors of all numbers are

Prime factors of 815 are 5 x 163

Prime factors of 664 are 2 x 2 x 2 x 83

Prime factors of 437 are 19 x 23

Prime factors of 821 are 821

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

Given numbers are 815, 664, 437, 821

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

Apply this formula for all numbers.

Step1:

LCM(815, 664) = 541160

GCD(815, 664) = ( 815 x 664 ) / 541160

= 815 / 664

= 815

Step2:

LCM(1, 437) = 437

GCD(1, 437) = ( 1 x 437 ) / 437

= 1 / 437

= 1

Step3:

LCM(1, 821) = 821

GCD(1, 821) = ( 1 x 821 ) / 821

= 1 / 821

= 1

So, Greatest Common Divisor of 815, 664, 437, 821 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 765, 212, 735, 655
• GCD of 299, 120, 348, 442
• GCD of 284, 942, 345, 585
• GCD of 850, 500, 862, 322
• GCD of 558, 217, 577, 878

Given numbers are 815, 664, 437, 821
The greatest common divisor of numbers 815, 664, 437, 821 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 815, 664, 437, 821 is 1.

1. What is the GCD of 815, 664, 437, 821?

GCD of given numbers 815, 664, 437, 821 is 1

2. How to calculate the greatest common divisor of 815, 664, 437, 821?

We can find the highest common divisor of 815, 664, 437, 821 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 815, 664, 437, 821 i.e 1.

3. How can I use the GCD of 815, 664, 437, 821Calculator?

Out the numbers 815, 664, 437, 821 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.