GCD of 639, 918, 668, 678 Calculator

Given Input numbers are 639, 918, 668, 678

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 918 :

The positive integer divisors of 918 that completely divides 918 are.

1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918

Divisors of 668 :

The positive integer divisors of 668 that completely divides 668 are.

1, 2, 4, 167, 334, 668

Divisors of 678 :

The positive integer divisors of 678 that completely divides 678 are.

1, 2, 3, 6, 113, 226, 339, 678

GCD of numbers is the greatest common divisor

So, the GCD (639, 918, 668, 678) = 1.

Given numbers are 639, 918, 668, 678

The list of prime factors of all numbers are

Prime factors of 639 are 3 x 3 x 71

Prime factors of 918 are 2 x 3 x 3 x 3 x 17

Prime factors of 668 are 2 x 2 x 167

Prime factors of 678 are 2 x 3 x 113

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

Given numbers are 639, 918, 668, 678

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

Apply this formula for all numbers.

Step1:

LCM(639, 918) = 65178

GCD(639, 918) = ( 639 x 918 ) / 65178

= 639 / 918

= 639

Step2:

LCM(9, 668) = 6012

GCD(9, 668) = ( 9 x 668 ) / 6012

= 9 / 668

= 9

Step3:

LCM(1, 678) = 678

GCD(1, 678) = ( 1 x 678 ) / 678

= 1 / 678

= 1

So, Greatest Common Divisor of 639, 918, 668, 678 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 791, 317, 594, 262
• GCD of 377, 849, 556, 223
• GCD of 214, 871, 378, 603
• GCD of 672, 494, 106, 944
• GCD of 930, 765, 953, 210

Given numbers are 639, 918, 668, 678
The greatest common divisor of numbers 639, 918, 668, 678 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 639, 918, 668, 678 is 1.

1. What is the GCD of 639, 918, 668, 678?

GCD of given numbers 639, 918, 668, 678 is 1

2. How to calculate the greatest common divisor of 639, 918, 668, 678?

We can find the highest common divisor of 639, 918, 668, 678 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, 918, 668, 678 i.e 1.

3. How can I use the GCD of 639, 918, 668, 678Calculator?

Out the numbers 639, 918, 668, 678 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.