GCD of 639, 672, 404, 355 Calculator

Given Input numbers are 639, 672, 404, 355

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

Divisors of 639 :

The positive integer divisors of 639 that completely divides 639 are.

1, 3, 9, 71, 213, 639

Divisors of 672 :

The positive integer divisors of 672 that completely divides 672 are.

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

Divisors of 404 :

The positive integer divisors of 404 that completely divides 404 are.

1, 2, 4, 101, 202, 404

Divisors of 355 :

The positive integer divisors of 355 that completely divides 355 are.

1, 5, 71, 355

GCD of numbers is the greatest common divisor

So, the GCD (639, 672, 404, 355) = 1.

Given numbers are 639, 672, 404, 355

The list of prime factors of all numbers are

Prime factors of 639 are 3 x 3 x 71

Prime factors of 672 are 2 x 2 x 2 x 2 x 2 x 3 x 7

Prime factors of 404 are 2 x 2 x 101

Prime factors of 355 are 5 x 71

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

Given numbers are 639, 672, 404, 355

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

Apply this formula for all numbers.

Step1:

LCM(639, 672) = 143136

GCD(639, 672) = ( 639 x 672 ) / 143136

= 639 / 672

= 639

Step2:

LCM(3, 404) = 1212

GCD(3, 404) = ( 3 x 404 ) / 1212

= 3 / 404

= 3

Step3:

LCM(1, 355) = 355

GCD(1, 355) = ( 1 x 355 ) / 355

= 1 / 355

= 1

So, Greatest Common Divisor of 639, 672, 404, 355 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 982, 810, 273, 973
• GCD of 490, 739, 450, 836
• GCD of 896, 104, 510, 611
• GCD of 421, 251, 189, 923
• GCD of 178, 670, 483, 468

Given numbers are 639, 672, 404, 355
The greatest common divisor of numbers 639, 672, 404, 355 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 639, 672, 404, 355 is 1.

1. What is the GCD of 639, 672, 404, 355?

GCD of given numbers 639, 672, 404, 355 is 1

2. How to calculate the greatest common divisor of 639, 672, 404, 355?

We can find the highest common divisor of 639, 672, 404, 355 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 639, 672, 404, 355 i.e 1.

3. How can I use the GCD of 639, 672, 404, 355Calculator?

Out the numbers 639, 672, 404, 355 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.