GCD of 397, 991, 421, 210 Calculator

Given Input numbers are 397, 991, 421, 210

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

Divisors of 397 :

The positive integer divisors of 397 that completely divides 397 are.

1, 397

Divisors of 991 :

The positive integer divisors of 991 that completely divides 991 are.

1, 991

Divisors of 421 :

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

1, 421

Divisors of 210 :

The positive integer divisors of 210 that completely divides 210 are.

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210

GCD of numbers is the greatest common divisor

So, the GCD (397, 991, 421, 210) = 1.

Given numbers are 397, 991, 421, 210

The list of prime factors of all numbers are

Prime factors of 397 are 397

Prime factors of 991 are 991

Prime factors of 421 are 421

Prime factors of 210 are 2 x 3 x 5 x 7

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

Given numbers are 397, 991, 421, 210

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

Apply this formula for all numbers.

Step1:

LCM(397, 991) = 393427

GCD(397, 991) = ( 397 x 991 ) / 393427

= 397 / 991

= 397

Step2:

LCM(1, 421) = 421

GCD(1, 421) = ( 1 x 421 ) / 421

= 1 / 421

= 1

Step3:

LCM(1, 210) = 210

GCD(1, 210) = ( 1 x 210 ) / 210

= 1 / 210

= 1

So, Greatest Common Divisor of 397, 991, 421, 210 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 760, 547, 792, 583
• GCD of 163, 220, 507, 733
• GCD of 904, 445, 897, 366
• GCD of 607, 201, 645, 907
• GCD of 576, 275, 313, 924

Given numbers are 397, 991, 421, 210
The greatest common divisor of numbers 397, 991, 421, 210 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 397, 991, 421, 210 is 1.

1. What is the GCD of 397, 991, 421, 210?

GCD of given numbers 397, 991, 421, 210 is 1

2. How to calculate the greatest common divisor of 397, 991, 421, 210?

We can find the highest common divisor of 397, 991, 421, 210 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 397, 991, 421, 210 i.e 1.

3. How can I use the GCD of 397, 991, 421, 210Calculator?

Out the numbers 397, 991, 421, 210 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.