GCD of 817, 788, 393, 138 Calculator

Given Input numbers are 817, 788, 393, 138

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

Divisors of 817 :

The positive integer divisors of 817 that completely divides 817 are.

1, 19, 43, 817

Divisors of 788 :

The positive integer divisors of 788 that completely divides 788 are.

1, 2, 4, 197, 394, 788

Divisors of 393 :

The positive integer divisors of 393 that completely divides 393 are.

1, 3, 131, 393

Divisors of 138 :

The positive integer divisors of 138 that completely divides 138 are.

1, 2, 3, 6, 23, 46, 69, 138

GCD of numbers is the greatest common divisor

So, the GCD (817, 788, 393, 138) = 1.

Given numbers are 817, 788, 393, 138

The list of prime factors of all numbers are

Prime factors of 817 are 19 x 43

Prime factors of 788 are 2 x 2 x 197

Prime factors of 393 are 3 x 131

Prime factors of 138 are 2 x 3 x 23

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

Given numbers are 817, 788, 393, 138

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

Apply this formula for all numbers.

Step1:

LCM(817, 788) = 643796

GCD(817, 788) = ( 817 x 788 ) / 643796

= 817 / 788

= 817

Step2:

LCM(1, 393) = 393

GCD(1, 393) = ( 1 x 393 ) / 393

= 1 / 393

= 1

Step3:

LCM(1, 138) = 138

GCD(1, 138) = ( 1 x 138 ) / 138

= 1 / 138

= 1

So, Greatest Common Divisor of 817, 788, 393, 138 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 775, 146, 642, 630
• GCD of 142, 499, 374, 467
• GCD of 537, 121, 150, 624
• GCD of 900, 626, 736, 845
• GCD of 635, 289, 196, 235

Given numbers are 817, 788, 393, 138
The greatest common divisor of numbers 817, 788, 393, 138 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 817, 788, 393, 138 is 1.

1. What is the GCD of 817, 788, 393, 138?

GCD of given numbers 817, 788, 393, 138 is 1

2. How to calculate the greatest common divisor of 817, 788, 393, 138?

We can find the highest common divisor of 817, 788, 393, 138 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 817, 788, 393, 138 i.e 1.

3. How can I use the GCD of 817, 788, 393, 138Calculator?

Out the numbers 817, 788, 393, 138 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.