GCD of 664, 322, 685, 820 Calculator

Given Input numbers are 664, 322, 685, 820

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

Divisors of 664 :

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

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

Divisors of 322 :

The positive integer divisors of 322 that completely divides 322 are.

1, 2, 7, 14, 23, 46, 161, 322

Divisors of 685 :

The positive integer divisors of 685 that completely divides 685 are.

1, 5, 137, 685

Divisors of 820 :

The positive integer divisors of 820 that completely divides 820 are.

1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820

GCD of numbers is the greatest common divisor

So, the GCD (664, 322, 685, 820) = 1.

Given numbers are 664, 322, 685, 820

The list of prime factors of all numbers are

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

Prime factors of 322 are 2 x 7 x 23

Prime factors of 685 are 5 x 137

Prime factors of 820 are 2 x 2 x 5 x 41

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

Given numbers are 664, 322, 685, 820

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

Apply this formula for all numbers.

Step1:

LCM(664, 322) = 106904

GCD(664, 322) = ( 664 x 322 ) / 106904

= 664 / 322

= 664

Step2:

LCM(2, 685) = 1370

GCD(2, 685) = ( 2 x 685 ) / 1370

= 2 / 685

= 2

Step3:

LCM(1, 820) = 820

GCD(1, 820) = ( 1 x 820 ) / 820

= 1 / 820

= 1

So, Greatest Common Divisor of 664, 322, 685, 820 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 201, 150, 791, 205
• GCD of 358, 111, 364, 663
• GCD of 361, 956, 745, 656
• GCD of 620, 977, 864, 818
• GCD of 151, 323, 332, 197

Given numbers are 664, 322, 685, 820
The greatest common divisor of numbers 664, 322, 685, 820 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 664, 322, 685, 820 is 1.

1. What is the GCD of 664, 322, 685, 820?

GCD of given numbers 664, 322, 685, 820 is 1

2. How to calculate the greatest common divisor of 664, 322, 685, 820?

We can find the highest common divisor of 664, 322, 685, 820 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 664, 322, 685, 820 i.e 1.

3. How can I use the GCD of 664, 322, 685, 820Calculator?

Out the numbers 664, 322, 685, 820 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.