GCD of 168, 648, 370, 405 Calculator

Given Input numbers are 168, 648, 370, 405

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

Divisors of 168 :

The positive integer divisors of 168 that completely divides 168 are.

1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168

Divisors of 648 :

The positive integer divisors of 648 that completely divides 648 are.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648

Divisors of 370 :

The positive integer divisors of 370 that completely divides 370 are.

1, 2, 5, 10, 37, 74, 185, 370

Divisors of 405 :

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

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

GCD of numbers is the greatest common divisor

So, the GCD (168, 648, 370, 405) = 1.

Given numbers are 168, 648, 370, 405

The list of prime factors of all numbers are

Prime factors of 168 are 2 x 2 x 2 x 3 x 7

Prime factors of 648 are 2 x 2 x 2 x 3 x 3 x 3 x 3

Prime factors of 370 are 2 x 5 x 37

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

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

Given numbers are 168, 648, 370, 405

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

Apply this formula for all numbers.

Step1:

LCM(168, 648) = 4536

GCD(168, 648) = ( 168 x 648 ) / 4536

= 168 / 648

= 168

Step2:

LCM(24, 370) = 4440

GCD(24, 370) = ( 24 x 370 ) / 4440

= 24 / 370

= 24

Step3:

LCM(2, 405) = 810

GCD(2, 405) = ( 2 x 405 ) / 810

= 2 / 405

= 2

So, Greatest Common Divisor of 168, 648, 370, 405 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 805, 354, 156, 519
• GCD of 122, 373, 352, 345
• GCD of 884, 929, 353, 131
• GCD of 484, 416, 215, 172
• GCD of 351, 558, 574, 152

Given numbers are 168, 648, 370, 405
The greatest common divisor of numbers 168, 648, 370, 405 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 168, 648, 370, 405 is 1.

1. What is the GCD of 168, 648, 370, 405?

GCD of given numbers 168, 648, 370, 405 is 1

2. How to calculate the greatest common divisor of 168, 648, 370, 405?

We can find the highest common divisor of 168, 648, 370, 405 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 168, 648, 370, 405 i.e 1.

3. How can I use the GCD of 168, 648, 370, 405Calculator?

Out the numbers 168, 648, 370, 405 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.