GCD of 128, 821, 138 Calculator

Given Input numbers are 128, 821, 138

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

Divisors of 128 :

The positive integer divisors of 128 that completely divides 128 are.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 821 :

The positive integer divisors of 821 that completely divides 821 are.

1, 821

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 (128, 821, 138) = 1.

Given numbers are 128, 821, 138

The list of prime factors of all numbers are

Prime factors of 128 are 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime factors of 821 are 821

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 128, 821, 138

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

Apply this formula for all numbers.

Step1:

LCM(128, 821) = 105088

GCD(128, 821) = ( 128 x 821 ) / 105088

= 128 / 821

= 128

Step2:

LCM(1, 138) = 138

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

= 1 / 138

= 1

So, Greatest Common Divisor of 128, 821, 138 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 141, 916, 105
• GCD of 229, 926, 385
• GCD of 231, 725, 642
• GCD of 184, 940, 478
• GCD of 181, 384, 549

Given numbers are 128, 821, 138
The greatest common divisor of numbers 128, 821, 138 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 128, 821, 138 is 1.

1. What is the GCD of 128, 821, 138?

GCD of given numbers 128, 821, 138 is 1

2. How to calculate the greatest common divisor of 128, 821, 138?

We can find the highest common divisor of 128, 821, 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 128, 821, 138 i.e 1.

3. How can I use the GCD of 128, 821, 138Calculator?

Out the numbers 128, 821, 138 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.