GCD of 638, 137, 280, 128 Calculator

Given Input numbers are 638, 137, 280, 128

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 137 :

The positive integer divisors of 137 that completely divides 137 are.

1, 137

Divisors of 280 :

The positive integer divisors of 280 that completely divides 280 are.

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280

Divisors of 128 :

The positive integer divisors of 128 that completely divides 128 are.

1, 2, 4, 8, 16, 32, 64, 128

GCD of numbers is the greatest common divisor

So, the GCD (638, 137, 280, 128) = 1.

Given numbers are 638, 137, 280, 128

The list of prime factors of all numbers are

Prime factors of 638 are 2 x 11 x 29

Prime factors of 137 are 137

Prime factors of 280 are 2 x 2 x 2 x 5 x 7

Prime factors of 128 are 2 x 2 x 2 x 2 x 2 x 2 x 2

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

Given numbers are 638, 137, 280, 128

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

Apply this formula for all numbers.

Step1:

LCM(638, 137) = 87406

GCD(638, 137) = ( 638 x 137 ) / 87406

= 638 / 137

= 638

Step2:

LCM(1, 280) = 280

GCD(1, 280) = ( 1 x 280 ) / 280

= 1 / 280

= 1

Step3:

LCM(1, 128) = 128

GCD(1, 128) = ( 1 x 128 ) / 128

= 1 / 128

= 1

So, Greatest Common Divisor of 638, 137, 280, 128 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 775, 750, 992, 801
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Given numbers are 638, 137, 280, 128
The greatest common divisor of numbers 638, 137, 280, 128 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 638, 137, 280, 128 is 1.

1. What is the GCD of 638, 137, 280, 128?

GCD of given numbers 638, 137, 280, 128 is 1

2. How to calculate the greatest common divisor of 638, 137, 280, 128?

We can find the highest common divisor of 638, 137, 280, 128 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, 137, 280, 128 i.e 1.

3. How can I use the GCD of 638, 137, 280, 128Calculator?

Out the numbers 638, 137, 280, 128 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.