GCD of 639, 125, 77, 672 Calculator

Given Input numbers are 639, 125, 77, 672

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 125

List of positive integer divisors of 125 that divides 125 without a remainder.

1, 5, 25, 125

Divisors of 77

List of positive integer divisors of 77 that divides 77 without a remainder.

1, 7, 11, 77

Divisors of 672

List of positive integer divisors of 672 that divides 672 without a remainder.

1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672

Greatest Common Divisior

We found the divisors of 639, 125, 77, 672 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 639, 125, 77, 672 is 1.

Therefore, GCD of numbers 639, 125, 77, 672 is 1

Given Input Data is 639, 125, 77, 672

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 125 is 5 x 5 x 5

Prime Factorization of 77 is 7 x 11

Prime Factorization of 672 is 2 x 2 x 2 x 2 x 2 x 3 x 7

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

Step1:

Let's calculate the GCD of first two numbers

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

LCM(639, 125) = 79875

GCD(639, 125) = ( 639 x 125 ) / 79875

GCD(639, 125) = 79875 / 79875

GCD(639, 125) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 77

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

LCM(1, 77) = 77

GCD(1, 77) = ( 1 x 77 ) / 77

GCD(1, 77) = 77 / 77

GCD(1, 77) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 672

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

LCM(1, 672) = 672

GCD(1, 672) = ( 1 x 672 ) / 672

GCD(1, 672) = 672 / 672

GCD(1, 672) = 1

GCD of 639, 125, 77, 672 is 1

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1. What is the GCD of 639, 125, 77, 672?

GCD of 639, 125, 77, 672 is 1

2. Where do I get the detailed procedure to find GCD of 639, 125, 77, 672?

You can find a detailed procedure to find GCD of 639, 125, 77, 672 on our page.

3. How to find GCD of 639, 125, 77, 672 on a calculator?

You can find the GCD of 639, 125, 77, 672 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.