GCD of 820, 622, 780, 421 Calculator

Given Input numbers are 820, 622, 780, 421

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

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

Divisors of 622 :

The positive integer divisors of 622 that completely divides 622 are.

1, 2, 311, 622

Divisors of 780 :

The positive integer divisors of 780 that completely divides 780 are.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

Divisors of 421 :

The positive integer divisors of 421 that completely divides 421 are.

1, 421

GCD of numbers is the greatest common divisor

So, the GCD (820, 622, 780, 421) = 1.

Given numbers are 820, 622, 780, 421

The list of prime factors of all numbers are

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

Prime factors of 622 are 2 x 311

Prime factors of 780 are 2 x 2 x 3 x 5 x 13

Prime factors of 421 are 421

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

Given numbers are 820, 622, 780, 421

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

Apply this formula for all numbers.

Step1:

LCM(820, 622) = 255020

GCD(820, 622) = ( 820 x 622 ) / 255020

= 820 / 622

= 820

Step2:

LCM(2, 780) = 780

GCD(2, 780) = ( 2 x 780 ) / 780

= 2 / 780

= 2

Step3:

LCM(2, 421) = 842

GCD(2, 421) = ( 2 x 421 ) / 842

= 2 / 421

= 2

So, Greatest Common Divisor of 820, 622, 780, 421 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 429, 621, 859, 496
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• GCD of 432, 576, 934, 870
• GCD of 713, 155, 722, 554
• GCD of 634, 542, 538, 964

Given numbers are 820, 622, 780, 421
The greatest common divisor of numbers 820, 622, 780, 421 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 820, 622, 780, 421 is 1.

1. What is the GCD of 820, 622, 780, 421?

GCD of given numbers 820, 622, 780, 421 is 1

2. How to calculate the greatest common divisor of 820, 622, 780, 421?

We can find the highest common divisor of 820, 622, 780, 421 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 820, 622, 780, 421 i.e 1.

3. How can I use the GCD of 820, 622, 780, 421Calculator?

Out the numbers 820, 622, 780, 421 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.