GCD of 489, 644, 438, 993 Calculator

Given Input numbers are 489, 644, 438, 993

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

Divisors of 489 :

The positive integer divisors of 489 that completely divides 489 are.

1, 3, 163, 489

Divisors of 644 :

The positive integer divisors of 644 that completely divides 644 are.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 438 :

The positive integer divisors of 438 that completely divides 438 are.

1, 2, 3, 6, 73, 146, 219, 438

Divisors of 993 :

The positive integer divisors of 993 that completely divides 993 are.

1, 3, 331, 993

GCD of numbers is the greatest common divisor

So, the GCD (489, 644, 438, 993) = 1.

Given numbers are 489, 644, 438, 993

The list of prime factors of all numbers are

Prime factors of 489 are 3 x 163

Prime factors of 644 are 2 x 2 x 7 x 23

Prime factors of 438 are 2 x 3 x 73

Prime factors of 993 are 3 x 331

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

Given numbers are 489, 644, 438, 993

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

Apply this formula for all numbers.

Step1:

LCM(489, 644) = 314916

GCD(489, 644) = ( 489 x 644 ) / 314916

= 489 / 644

= 489

Step2:

LCM(1, 438) = 438

GCD(1, 438) = ( 1 x 438 ) / 438

= 1 / 438

= 1

Step3:

LCM(1, 993) = 993

GCD(1, 993) = ( 1 x 993 ) / 993

= 1 / 993

= 1

So, Greatest Common Divisor of 489, 644, 438, 993 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 584, 837, 145, 123
• GCD of 117, 779, 940, 691
• GCD of 702, 805, 877, 217
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• GCD of 525, 867, 207, 775

Given numbers are 489, 644, 438, 993
The greatest common divisor of numbers 489, 644, 438, 993 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 489, 644, 438, 993 is 1.

1. What is the GCD of 489, 644, 438, 993?

GCD of given numbers 489, 644, 438, 993 is 1

2. How to calculate the greatest common divisor of 489, 644, 438, 993?

We can find the highest common divisor of 489, 644, 438, 993 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 489, 644, 438, 993 i.e 1.

3. How can I use the GCD of 489, 644, 438, 993Calculator?

Out the numbers 489, 644, 438, 993 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.