GCD of 438, 225, 73, 640 Calculator

Given Input numbers are 438, 225, 73, 640

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

Divisors of 438 :

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

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

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 73 :

The positive integer divisors of 73 that completely divides 73 are.

1, 73

Divisors of 640 :

The positive integer divisors of 640 that completely divides 640 are.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

GCD of numbers is the greatest common divisor

So, the GCD (438, 225, 73, 640) = 1.

Given numbers are 438, 225, 73, 640

The list of prime factors of all numbers are

Prime factors of 438 are 2 x 3 x 73

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

Prime factors of 73 are 73

Prime factors of 640 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

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

Given numbers are 438, 225, 73, 640

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

Apply this formula for all numbers.

Step1:

LCM(438, 225) = 32850

GCD(438, 225) = ( 438 x 225 ) / 32850

= 438 / 225

= 438

Step2:

LCM(3, 73) = 219

GCD(3, 73) = ( 3 x 73 ) / 219

= 3 / 73

= 3

Step3:

LCM(1, 640) = 640

GCD(1, 640) = ( 1 x 640 ) / 640

= 1 / 640

= 1

So, Greatest Common Divisor of 438, 225, 73, 640 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 290, 703, 66, 526
• GCD of 297, 749, 34, 890
• GCD of 557, 394, 20, 831
• GCD of 684, 793, 59, 501
• GCD of 129, 939, 64, 167

Given numbers are 438, 225, 73, 640
The greatest common divisor of numbers 438, 225, 73, 640 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 438, 225, 73, 640 is 1.

1. What is the GCD of 438, 225, 73, 640?

GCD of given numbers 438, 225, 73, 640 is 1

2. How to calculate the greatest common divisor of 438, 225, 73, 640?

We can find the highest common divisor of 438, 225, 73, 640 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 438, 225, 73, 640 i.e 1.

3. How can I use the GCD of 438, 225, 73, 640Calculator?

Out the numbers 438, 225, 73, 640 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.