GCD of 645, 664, 388, 188 Calculator

Given Input numbers are 645, 664, 388, 188

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

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 664 :

The positive integer divisors of 664 that completely divides 664 are.

1, 2, 4, 8, 83, 166, 332, 664

Divisors of 388 :

The positive integer divisors of 388 that completely divides 388 are.

1, 2, 4, 97, 194, 388

Divisors of 188 :

The positive integer divisors of 188 that completely divides 188 are.

1, 2, 4, 47, 94, 188

GCD of numbers is the greatest common divisor

So, the GCD (645, 664, 388, 188) = 1.

Given numbers are 645, 664, 388, 188

The list of prime factors of all numbers are

Prime factors of 645 are 3 x 5 x 43

Prime factors of 664 are 2 x 2 x 2 x 83

Prime factors of 388 are 2 x 2 x 97

Prime factors of 188 are 2 x 2 x 47

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

Given numbers are 645, 664, 388, 188

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

Apply this formula for all numbers.

Step1:

LCM(645, 664) = 428280

GCD(645, 664) = ( 645 x 664 ) / 428280

= 645 / 664

= 645

Step2:

LCM(1, 388) = 388

GCD(1, 388) = ( 1 x 388 ) / 388

= 1 / 388

= 1

Step3:

LCM(1, 188) = 188

GCD(1, 188) = ( 1 x 188 ) / 188

= 1 / 188

= 1

So, Greatest Common Divisor of 645, 664, 388, 188 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 566, 670, 211, 986
• GCD of 595, 664, 270, 867
• GCD of 363, 347, 238, 363
• GCD of 168, 196, 583, 890
• GCD of 615, 578, 624, 955

Given numbers are 645, 664, 388, 188
The greatest common divisor of numbers 645, 664, 388, 188 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 645, 664, 388, 188 is 1.

1. What is the GCD of 645, 664, 388, 188?

GCD of given numbers 645, 664, 388, 188 is 1

2. How to calculate the greatest common divisor of 645, 664, 388, 188?

We can find the highest common divisor of 645, 664, 388, 188 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 645, 664, 388, 188 i.e 1.

3. How can I use the GCD of 645, 664, 388, 188Calculator?

Out the numbers 645, 664, 388, 188 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.