GCD of 638, 819, 225, 138 Calculator

Given Input numbers are 638, 819, 225, 138

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

Divisors of 638 :

The positive integer divisors of 638 that completely divides 638 are.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 819 :

The positive integer divisors of 819 that completely divides 819 are.

1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819

Divisors of 225 :

The positive integer divisors of 225 that completely divides 225 are.

1, 3, 5, 9, 15, 25, 45, 75, 225

Divisors of 138 :

The positive integer divisors of 138 that completely divides 138 are.

1, 2, 3, 6, 23, 46, 69, 138

GCD of numbers is the greatest common divisor

So, the GCD (638, 819, 225, 138) = 1.

Given numbers are 638, 819, 225, 138

The list of prime factors of all numbers are

Prime factors of 638 are 2 x 11 x 29

Prime factors of 819 are 3 x 3 x 7 x 13

Prime factors of 225 are 3 x 3 x 5 x 5

Prime factors of 138 are 2 x 3 x 23

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

Given numbers are 638, 819, 225, 138

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

Apply this formula for all numbers.

Step1:

LCM(638, 819) = 522522

GCD(638, 819) = ( 638 x 819 ) / 522522

= 638 / 819

= 638

Step2:

LCM(1, 225) = 225

GCD(1, 225) = ( 1 x 225 ) / 225

= 1 / 225

= 1

Step3:

LCM(1, 138) = 138

GCD(1, 138) = ( 1 x 138 ) / 138

= 1 / 138

= 1

So, Greatest Common Divisor of 638, 819, 225, 138 is 1

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Given numbers are 638, 819, 225, 138
The greatest common divisor of numbers 638, 819, 225, 138 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 638, 819, 225, 138 is 1.

1. What is the GCD of 638, 819, 225, 138?

GCD of given numbers 638, 819, 225, 138 is 1

2. How to calculate the greatest common divisor of 638, 819, 225, 138?

We can find the highest common divisor of 638, 819, 225, 138 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 638, 819, 225, 138 i.e 1.

3. How can I use the GCD of 638, 819, 225, 138Calculator?

Out the numbers 638, 819, 225, 138 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.