GCD of 129, 138, 813, 550 Calculator

Given Input numbers are 129, 138, 813, 550

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

Divisors of 129 :

The positive integer divisors of 129 that completely divides 129 are.

1, 3, 43, 129

Divisors of 138 :

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

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

Divisors of 813 :

The positive integer divisors of 813 that completely divides 813 are.

1, 3, 271, 813

Divisors of 550 :

The positive integer divisors of 550 that completely divides 550 are.

1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550

GCD of numbers is the greatest common divisor

So, the GCD (129, 138, 813, 550) = 1.

Given numbers are 129, 138, 813, 550

The list of prime factors of all numbers are

Prime factors of 129 are 3 x 43

Prime factors of 138 are 2 x 3 x 23

Prime factors of 813 are 3 x 271

Prime factors of 550 are 2 x 5 x 5 x 11

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

Given numbers are 129, 138, 813, 550

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

Apply this formula for all numbers.

Step1:

LCM(129, 138) = 5934

GCD(129, 138) = ( 129 x 138 ) / 5934

= 129 / 138

= 129

Step2:

LCM(3, 813) = 813

GCD(3, 813) = ( 3 x 813 ) / 813

= 3 / 813

= 3

Step3:

LCM(3, 550) = 1650

GCD(3, 550) = ( 3 x 550 ) / 1650

= 3 / 550

= 3

So, Greatest Common Divisor of 129, 138, 813, 550 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 679, 980, 689, 750
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• GCD of 538, 766, 625, 412
• GCD of 764, 714, 920, 410
• GCD of 657, 261, 267, 694

Given numbers are 129, 138, 813, 550
The greatest common divisor of numbers 129, 138, 813, 550 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 129, 138, 813, 550 is 1.

1. What is the GCD of 129, 138, 813, 550?

GCD of given numbers 129, 138, 813, 550 is 1

2. How to calculate the greatest common divisor of 129, 138, 813, 550?

We can find the highest common divisor of 129, 138, 813, 550 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 129, 138, 813, 550 i.e 1.

3. How can I use the GCD of 129, 138, 813, 550Calculator?

Out the numbers 129, 138, 813, 550 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.