GCD of 620, 405, 912, 438 Calculator

Given Input numbers are 620, 405, 912, 438

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

Divisors of 620 :

The positive integer divisors of 620 that completely divides 620 are.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Divisors of 405 :

The positive integer divisors of 405 that completely divides 405 are.

1, 3, 5, 9, 15, 27, 45, 81, 135, 405

Divisors of 912 :

The positive integer divisors of 912 that completely divides 912 are.

1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912

Divisors of 438 :

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

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

GCD of numbers is the greatest common divisor

So, the GCD (620, 405, 912, 438) = 1.

Given numbers are 620, 405, 912, 438

The list of prime factors of all numbers are

Prime factors of 620 are 2 x 2 x 5 x 31

Prime factors of 405 are 3 x 3 x 3 x 3 x 5

Prime factors of 912 are 2 x 2 x 2 x 2 x 3 x 19

Prime factors of 438 are 2 x 3 x 73

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

Given numbers are 620, 405, 912, 438

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

Apply this formula for all numbers.

Step1:

LCM(620, 405) = 50220

GCD(620, 405) = ( 620 x 405 ) / 50220

= 620 / 405

= 620

Step2:

LCM(5, 912) = 4560

GCD(5, 912) = ( 5 x 912 ) / 4560

= 5 / 912

= 5

Step3:

LCM(1, 438) = 438

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

= 1 / 438

= 1

So, Greatest Common Divisor of 620, 405, 912, 438 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 858, 621, 371, 536
• GCD of 725, 331, 621, 708
• GCD of 769, 279, 963, 383
• GCD of 798, 873, 954, 834
• GCD of 367, 507, 590, 229

Given numbers are 620, 405, 912, 438
The greatest common divisor of numbers 620, 405, 912, 438 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 620, 405, 912, 438 is 1.

1. What is the GCD of 620, 405, 912, 438?

GCD of given numbers 620, 405, 912, 438 is 1

2. How to calculate the greatest common divisor of 620, 405, 912, 438?

We can find the highest common divisor of 620, 405, 912, 438 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 620, 405, 912, 438 i.e 1.

3. How can I use the GCD of 620, 405, 912, 438Calculator?

Out the numbers 620, 405, 912, 438 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.