GCD of 639, 979, 748, 438 Calculator

Given Input numbers are 639, 979, 748, 438

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 979 :

The positive integer divisors of 979 that completely divides 979 are.

1, 11, 89, 979

Divisors of 748 :

The positive integer divisors of 748 that completely divides 748 are.

1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748

Divisors of 438 :

The positive integer divisors of 438 that completely divides 438 are.

1, 2, 3, 6, 73, 146, 219, 438

GCD of numbers is the greatest common divisor

So, the GCD (639, 979, 748, 438) = 1.

Given numbers are 639, 979, 748, 438

The list of prime factors of all numbers are

Prime factors of 639 are 3 x 3 x 71

Prime factors of 979 are 11 x 89

Prime factors of 748 are 2 x 2 x 11 x 17

Prime factors of 438 are 2 x 3 x 73

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

Given numbers are 639, 979, 748, 438

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

Apply this formula for all numbers.

Step1:

LCM(639, 979) = 625581

GCD(639, 979) = ( 639 x 979 ) / 625581

= 639 / 979

= 639

Step2:

LCM(1, 748) = 748

GCD(1, 748) = ( 1 x 748 ) / 748

= 1 / 748

= 1

Step3:

LCM(1, 438) = 438

GCD(1, 438) = ( 1 x 438 ) / 438

= 1 / 438

= 1

So, Greatest Common Divisor of 639, 979, 748, 438 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 298, 840, 163, 821
• GCD of 982, 296, 225, 699
• GCD of 549, 439, 580, 987
• GCD of 708, 225, 840, 648
• GCD of 250, 962, 109, 437

Given numbers are 639, 979, 748, 438
The greatest common divisor of numbers 639, 979, 748, 438 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 639, 979, 748, 438 is 1.

1. What is the GCD of 639, 979, 748, 438?

GCD of given numbers 639, 979, 748, 438 is 1

2. How to calculate the greatest common divisor of 639, 979, 748, 438?

We can find the highest common divisor of 639, 979, 748, 438 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, 979, 748, 438 i.e 1.

3. How can I use the GCD of 639, 979, 748, 438Calculator?

Out the numbers 639, 979, 748, 438 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.