GCD of 638, 278, 679, 988 Calculator

Given Input numbers are 638, 278, 679, 988

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 278 :

The positive integer divisors of 278 that completely divides 278 are.

1, 2, 139, 278

Divisors of 679 :

The positive integer divisors of 679 that completely divides 679 are.

1, 7, 97, 679

Divisors of 988 :

The positive integer divisors of 988 that completely divides 988 are.

1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988

GCD of numbers is the greatest common divisor

So, the GCD (638, 278, 679, 988) = 1.

Given numbers are 638, 278, 679, 988

The list of prime factors of all numbers are

Prime factors of 638 are 2 x 11 x 29

Prime factors of 278 are 2 x 139

Prime factors of 679 are 7 x 97

Prime factors of 988 are 2 x 2 x 13 x 19

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

Given numbers are 638, 278, 679, 988

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

Apply this formula for all numbers.

Step1:

LCM(638, 278) = 88682

GCD(638, 278) = ( 638 x 278 ) / 88682

= 638 / 278

= 638

Step2:

LCM(2, 679) = 1358

GCD(2, 679) = ( 2 x 679 ) / 1358

= 2 / 679

= 2

Step3:

LCM(1, 988) = 988

GCD(1, 988) = ( 1 x 988 ) / 988

= 1 / 988

= 1

So, Greatest Common Divisor of 638, 278, 679, 988 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 922, 111, 730, 305
• GCD of 219, 137, 904, 329
• GCD of 258, 236, 812, 761
• GCD of 504, 148, 763, 639
• GCD of 551, 264, 253, 303

Given numbers are 638, 278, 679, 988
The greatest common divisor of numbers 638, 278, 679, 988 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 638, 278, 679, 988 is 1.

1. What is the GCD of 638, 278, 679, 988?

GCD of given numbers 638, 278, 679, 988 is 1

2. How to calculate the greatest common divisor of 638, 278, 679, 988?

We can find the highest common divisor of 638, 278, 679, 988 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, 278, 679, 988 i.e 1.

3. How can I use the GCD of 638, 278, 679, 988Calculator?

Out the numbers 638, 278, 679, 988 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.