GCD of 393, 664, 940, 420 Calculator

Given Input numbers are 393, 664, 940, 420

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

Divisors of 393 :

The positive integer divisors of 393 that completely divides 393 are.

1, 3, 131, 393

Divisors of 664 :

The positive integer divisors of 664 that completely divides 664 are.

1, 2, 4, 8, 83, 166, 332, 664

Divisors of 940 :

The positive integer divisors of 940 that completely divides 940 are.

1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940

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 (393, 664, 940, 420) = 1.

Given numbers are 393, 664, 940, 420

The list of prime factors of all numbers are

Prime factors of 393 are 3 x 131

Prime factors of 664 are 2 x 2 x 2 x 83

Prime factors of 940 are 2 x 2 x 5 x 47

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 393, 664, 940, 420

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

Apply this formula for all numbers.

Step1:

LCM(393, 664) = 260952

GCD(393, 664) = ( 393 x 664 ) / 260952

= 393 / 664

= 393

Step2:

LCM(1, 940) = 940

GCD(1, 940) = ( 1 x 940 ) / 940

= 1 / 940

= 1

Step3:

LCM(1, 420) = 420

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

= 1 / 420

= 1

So, Greatest Common Divisor of 393, 664, 940, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 543, 316, 826, 304
• GCD of 868, 772, 417, 109
• GCD of 995, 967, 179, 357
• GCD of 208, 924, 399, 517
• GCD of 547, 977, 293, 903

Given numbers are 393, 664, 940, 420
The greatest common divisor of numbers 393, 664, 940, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 393, 664, 940, 420 is 1.

1. What is the GCD of 393, 664, 940, 420?

GCD of given numbers 393, 664, 940, 420 is 1

2. How to calculate the greatest common divisor of 393, 664, 940, 420?

We can find the highest common divisor of 393, 664, 940, 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 393, 664, 940, 420 i.e 1.

3. How can I use the GCD of 393, 664, 940, 420Calculator?

Out the numbers 393, 664, 940, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.