GCD of 389, 996, 420, 643 Calculator

Given Input numbers are 389, 996, 420, 643

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

Divisors of 389 :

The positive integer divisors of 389 that completely divides 389 are.

1, 389

Divisors of 996 :

The positive integer divisors of 996 that completely divides 996 are.

1, 2, 3, 4, 6, 12, 83, 166, 249, 332, 498, 996

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

Divisors of 643 :

The positive integer divisors of 643 that completely divides 643 are.

1, 643

GCD of numbers is the greatest common divisor

So, the GCD (389, 996, 420, 643) = 1.

Given numbers are 389, 996, 420, 643

The list of prime factors of all numbers are

Prime factors of 389 are 389

Prime factors of 996 are 2 x 2 x 3 x 83

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

Prime factors of 643 are 643

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

Given numbers are 389, 996, 420, 643

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

Apply this formula for all numbers.

Step1:

LCM(389, 996) = 387444

GCD(389, 996) = ( 389 x 996 ) / 387444

= 389 / 996

= 389

Step2:

LCM(1, 420) = 420

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

= 1 / 420

= 1

Step3:

LCM(1, 643) = 643

GCD(1, 643) = ( 1 x 643 ) / 643

= 1 / 643

= 1

So, Greatest Common Divisor of 389, 996, 420, 643 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 753, 416, 567, 382
• GCD of 453, 287, 708, 325
• GCD of 213, 232, 936, 813
• GCD of 421, 181, 761, 837
• GCD of 829, 962, 712, 386

Given numbers are 389, 996, 420, 643
The greatest common divisor of numbers 389, 996, 420, 643 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 389, 996, 420, 643 is 1.

1. What is the GCD of 389, 996, 420, 643?

GCD of given numbers 389, 996, 420, 643 is 1

2. How to calculate the greatest common divisor of 389, 996, 420, 643?

We can find the highest common divisor of 389, 996, 420, 643 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 389, 996, 420, 643 i.e 1.

3. How can I use the GCD of 389, 996, 420, 643Calculator?

Out the numbers 389, 996, 420, 643 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.