GCD of 809, 128, 821, 197 Calculator

Given Input numbers are 809, 128, 821, 197

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

Divisors of 809 :

The positive integer divisors of 809 that completely divides 809 are.

1, 809

Divisors of 128 :

The positive integer divisors of 128 that completely divides 128 are.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 821 :

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

1, 821

Divisors of 197 :

The positive integer divisors of 197 that completely divides 197 are.

1, 197

GCD of numbers is the greatest common divisor

So, the GCD (809, 128, 821, 197) = 1.

Given numbers are 809, 128, 821, 197

The list of prime factors of all numbers are

Prime factors of 809 are 809

Prime factors of 128 are 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime factors of 821 are 821

Prime factors of 197 are 197

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

Given numbers are 809, 128, 821, 197

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

Apply this formula for all numbers.

Step1:

LCM(809, 128) = 103552

GCD(809, 128) = ( 809 x 128 ) / 103552

= 809 / 128

= 809

Step2:

LCM(1, 821) = 821

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

= 1 / 821

= 1

Step3:

LCM(1, 197) = 197

GCD(1, 197) = ( 1 x 197 ) / 197

= 1 / 197

= 1

So, Greatest Common Divisor of 809, 128, 821, 197 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 437, 636, 959, 897
• GCD of 550, 657, 725, 926
• GCD of 836, 994, 564, 510
• GCD of 976, 521, 687, 765
• GCD of 711, 283, 974, 373

Given numbers are 809, 128, 821, 197
The greatest common divisor of numbers 809, 128, 821, 197 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 809, 128, 821, 197 is 1.

1. What is the GCD of 809, 128, 821, 197?

GCD of given numbers 809, 128, 821, 197 is 1

2. How to calculate the greatest common divisor of 809, 128, 821, 197?

We can find the highest common divisor of 809, 128, 821, 197 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 809, 128, 821, 197 i.e 1.

3. How can I use the GCD of 809, 128, 821, 197Calculator?

Out the numbers 809, 128, 821, 197 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.