GCD of 438, 690, 344, 947 Calculator

Given Input numbers are 438, 690, 344, 947

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 690 :

The positive integer divisors of 690 that completely divides 690 are.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

Divisors of 344 :

The positive integer divisors of 344 that completely divides 344 are.

1, 2, 4, 8, 43, 86, 172, 344

Divisors of 947 :

The positive integer divisors of 947 that completely divides 947 are.

1, 947

GCD of numbers is the greatest common divisor

So, the GCD (438, 690, 344, 947) = 1.

Given numbers are 438, 690, 344, 947

The list of prime factors of all numbers are

Prime factors of 438 are 2 x 3 x 73

Prime factors of 690 are 2 x 3 x 5 x 23

Prime factors of 344 are 2 x 2 x 2 x 43

Prime factors of 947 are 947

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

Given numbers are 438, 690, 344, 947

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

Apply this formula for all numbers.

Step1:

LCM(438, 690) = 50370

GCD(438, 690) = ( 438 x 690 ) / 50370

= 438 / 690

= 438

Step2:

LCM(6, 344) = 1032

GCD(6, 344) = ( 6 x 344 ) / 1032

= 6 / 344

= 6

Step3:

LCM(2, 947) = 1894

GCD(2, 947) = ( 2 x 947 ) / 1894

= 2 / 947

= 2

So, Greatest Common Divisor of 438, 690, 344, 947 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 654, 850, 487, 140
• GCD of 504, 150, 774, 436
• GCD of 458, 186, 373, 613
• GCD of 145, 765, 231, 995
• GCD of 431, 206, 925, 804

Given numbers are 438, 690, 344, 947
The greatest common divisor of numbers 438, 690, 344, 947 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 438, 690, 344, 947 is 1.

1. What is the GCD of 438, 690, 344, 947?

GCD of given numbers 438, 690, 344, 947 is 1

2. How to calculate the greatest common divisor of 438, 690, 344, 947?

We can find the highest common divisor of 438, 690, 344, 947 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, 690, 344, 947 i.e 1.

3. How can I use the GCD of 438, 690, 344, 947Calculator?

Out the numbers 438, 690, 344, 947 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.