GCD of 421, 399, 511, 838 Calculator

Given Input numbers are 421, 399, 511, 838

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

Divisors of 421 :

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

1, 421

Divisors of 399 :

The positive integer divisors of 399 that completely divides 399 are.

1, 3, 7, 19, 21, 57, 133, 399

Divisors of 511 :

The positive integer divisors of 511 that completely divides 511 are.

1, 7, 73, 511

Divisors of 838 :

The positive integer divisors of 838 that completely divides 838 are.

1, 2, 419, 838

GCD of numbers is the greatest common divisor

So, the GCD (421, 399, 511, 838) = 1.

Given numbers are 421, 399, 511, 838

The list of prime factors of all numbers are

Prime factors of 421 are 421

Prime factors of 399 are 3 x 7 x 19

Prime factors of 511 are 7 x 73

Prime factors of 838 are 2 x 419

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

Given numbers are 421, 399, 511, 838

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

Apply this formula for all numbers.

Step1:

LCM(421, 399) = 167979

GCD(421, 399) = ( 421 x 399 ) / 167979

= 421 / 399

= 421

Step2:

LCM(1, 511) = 511

GCD(1, 511) = ( 1 x 511 ) / 511

= 1 / 511

= 1

Step3:

LCM(1, 838) = 838

GCD(1, 838) = ( 1 x 838 ) / 838

= 1 / 838

= 1

So, Greatest Common Divisor of 421, 399, 511, 838 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 978, 604, 138, 633
• GCD of 718, 828, 170, 507
• GCD of 205, 124, 828, 983
• GCD of 745, 653, 300, 149
• GCD of 123, 750, 376, 689

Given numbers are 421, 399, 511, 838
The greatest common divisor of numbers 421, 399, 511, 838 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 421, 399, 511, 838 is 1.

1. What is the GCD of 421, 399, 511, 838?

GCD of given numbers 421, 399, 511, 838 is 1

2. How to calculate the greatest common divisor of 421, 399, 511, 838?

We can find the highest common divisor of 421, 399, 511, 838 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 421, 399, 511, 838 i.e 1.

3. How can I use the GCD of 421, 399, 511, 838Calculator?

Out the numbers 421, 399, 511, 838 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.