GCD of 638, 502, 645, 126 Calculator

Given Input numbers are 638, 502, 645, 126

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

Divisors of 638 :

The positive integer divisors of 638 that completely divides 638 are.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 502 :

The positive integer divisors of 502 that completely divides 502 are.

1, 2, 251, 502

Divisors of 645 :

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

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

Divisors of 126 :

The positive integer divisors of 126 that completely divides 126 are.

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126

GCD of numbers is the greatest common divisor

So, the GCD (638, 502, 645, 126) = 1.

Given numbers are 638, 502, 645, 126

The list of prime factors of all numbers are

Prime factors of 638 are 2 x 11 x 29

Prime factors of 502 are 2 x 251

Prime factors of 645 are 3 x 5 x 43

Prime factors of 126 are 2 x 3 x 3 x 7

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

Given numbers are 638, 502, 645, 126

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

Apply this formula for all numbers.

Step1:

LCM(638, 502) = 160138

GCD(638, 502) = ( 638 x 502 ) / 160138

= 638 / 502

= 638

Step2:

LCM(2, 645) = 1290

GCD(2, 645) = ( 2 x 645 ) / 1290

= 2 / 645

= 2

Step3:

LCM(1, 126) = 126

GCD(1, 126) = ( 1 x 126 ) / 126

= 1 / 126

= 1

So, Greatest Common Divisor of 638, 502, 645, 126 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 606, 640, 669, 891
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Given numbers are 638, 502, 645, 126
The greatest common divisor of numbers 638, 502, 645, 126 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 638, 502, 645, 126 is 1.

1. What is the GCD of 638, 502, 645, 126?

GCD of given numbers 638, 502, 645, 126 is 1

2. How to calculate the greatest common divisor of 638, 502, 645, 126?

We can find the highest common divisor of 638, 502, 645, 126 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 638, 502, 645, 126 i.e 1.

3. How can I use the GCD of 638, 502, 645, 126Calculator?

Out the numbers 638, 502, 645, 126 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.