GCD of 379, 646, 321, 420 Calculator

Given Input numbers are 379, 646, 321, 420

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

Divisors of 379 :

The positive integer divisors of 379 that completely divides 379 are.

1, 379

Divisors of 646 :

The positive integer divisors of 646 that completely divides 646 are.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 321 :

The positive integer divisors of 321 that completely divides 321 are.

1, 3, 107, 321

Divisors of 420 :

The positive integer divisors of 420 that completely divides 420 are.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

GCD of numbers is the greatest common divisor

So, the GCD (379, 646, 321, 420) = 1.

Given numbers are 379, 646, 321, 420

The list of prime factors of all numbers are

Prime factors of 379 are 379

Prime factors of 646 are 2 x 17 x 19

Prime factors of 321 are 3 x 107

Prime factors of 420 are 2 x 2 x 3 x 5 x 7

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

Given numbers are 379, 646, 321, 420

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

Apply this formula for all numbers.

Step1:

LCM(379, 646) = 244834

GCD(379, 646) = ( 379 x 646 ) / 244834

= 379 / 646

= 379

Step2:

LCM(1, 321) = 321

GCD(1, 321) = ( 1 x 321 ) / 321

= 1 / 321

= 1

Step3:

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

= 1 / 420

= 1

So, Greatest Common Divisor of 379, 646, 321, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 739, 599, 997, 396
• GCD of 400, 580, 407, 433
• GCD of 529, 518, 243, 832
• GCD of 833, 890, 768, 962
• GCD of 990, 701, 184, 288

Given numbers are 379, 646, 321, 420
The greatest common divisor of numbers 379, 646, 321, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 379, 646, 321, 420 is 1.

1. What is the GCD of 379, 646, 321, 420?

GCD of given numbers 379, 646, 321, 420 is 1

2. How to calculate the greatest common divisor of 379, 646, 321, 420?

We can find the highest common divisor of 379, 646, 321, 420 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 379, 646, 321, 420 i.e 1.

3. How can I use the GCD of 379, 646, 321, 420Calculator?

Out the numbers 379, 646, 321, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.