GCD of 821, 381, 679, 830 Calculator

Given Input numbers are 821, 381, 679, 830

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 381 :

The positive integer divisors of 381 that completely divides 381 are.

1, 3, 127, 381

Divisors of 679 :

The positive integer divisors of 679 that completely divides 679 are.

1, 7, 97, 679

Divisors of 830 :

The positive integer divisors of 830 that completely divides 830 are.

1, 2, 5, 10, 83, 166, 415, 830

GCD of numbers is the greatest common divisor

So, the GCD (821, 381, 679, 830) = 1.

Given numbers are 821, 381, 679, 830

The list of prime factors of all numbers are

Prime factors of 821 are 821

Prime factors of 381 are 3 x 127

Prime factors of 679 are 7 x 97

Prime factors of 830 are 2 x 5 x 83

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

Given numbers are 821, 381, 679, 830

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

Apply this formula for all numbers.

Step1:

LCM(821, 381) = 312801

GCD(821, 381) = ( 821 x 381 ) / 312801

= 821 / 381

= 821

Step2:

LCM(1, 679) = 679

GCD(1, 679) = ( 1 x 679 ) / 679

= 1 / 679

= 1

Step3:

LCM(1, 830) = 830

GCD(1, 830) = ( 1 x 830 ) / 830

= 1 / 830

= 1

So, Greatest Common Divisor of 821, 381, 679, 830 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 454, 869, 444, 835
• GCD of 676, 480, 663, 197
• GCD of 416, 414, 149, 677
• GCD of 297, 899, 458, 920
• GCD of 768, 497, 587, 657

Given numbers are 821, 381, 679, 830
The greatest common divisor of numbers 821, 381, 679, 830 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 381, 679, 830 is 1.

1. What is the GCD of 821, 381, 679, 830?

GCD of given numbers 821, 381, 679, 830 is 1

2. How to calculate the greatest common divisor of 821, 381, 679, 830?

We can find the highest common divisor of 821, 381, 679, 830 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, 381, 679, 830 i.e 1.

3. How can I use the GCD of 821, 381, 679, 830Calculator?

Out the numbers 821, 381, 679, 830 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.