GCD of 320, 639, 747, 642 Calculator

Given Input numbers are 320, 639, 747, 642

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

Divisors of 320 :

The positive integer divisors of 320 that completely divides 320 are.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320

Divisors of 639 :

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

1, 3, 9, 71, 213, 639

Divisors of 747 :

The positive integer divisors of 747 that completely divides 747 are.

1, 3, 9, 83, 249, 747

Divisors of 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

GCD of numbers is the greatest common divisor

So, the GCD (320, 639, 747, 642) = 1.

Given numbers are 320, 639, 747, 642

The list of prime factors of all numbers are

Prime factors of 320 are 2 x 2 x 2 x 2 x 2 x 2 x 5

Prime factors of 639 are 3 x 3 x 71

Prime factors of 747 are 3 x 3 x 83

Prime factors of 642 are 2 x 3 x 107

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

Given numbers are 320, 639, 747, 642

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

Apply this formula for all numbers.

Step1:

LCM(320, 639) = 204480

GCD(320, 639) = ( 320 x 639 ) / 204480

= 320 / 639

= 320

Step2:

LCM(1, 747) = 747

GCD(1, 747) = ( 1 x 747 ) / 747

= 1 / 747

= 1

Step3:

LCM(1, 642) = 642

GCD(1, 642) = ( 1 x 642 ) / 642

= 1 / 642

= 1

So, Greatest Common Divisor of 320, 639, 747, 642 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 760, 238, 163, 559
• GCD of 966, 683, 946, 261
• GCD of 853, 731, 736, 107
• GCD of 573, 308, 329, 611
• GCD of 837, 657, 641, 243

Given numbers are 320, 639, 747, 642
The greatest common divisor of numbers 320, 639, 747, 642 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 320, 639, 747, 642 is 1.

1. What is the GCD of 320, 639, 747, 642?

GCD of given numbers 320, 639, 747, 642 is 1

2. How to calculate the greatest common divisor of 320, 639, 747, 642?

We can find the highest common divisor of 320, 639, 747, 642 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 320, 639, 747, 642 i.e 1.

3. How can I use the GCD of 320, 639, 747, 642Calculator?

Out the numbers 320, 639, 747, 642 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.