GCD of 129, 437, 388, 815 Calculator

Given Input numbers are 129, 437, 388, 815

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 437 :

The positive integer divisors of 437 that completely divides 437 are.

1, 19, 23, 437

Divisors of 388 :

The positive integer divisors of 388 that completely divides 388 are.

1, 2, 4, 97, 194, 388

Divisors of 815 :

The positive integer divisors of 815 that completely divides 815 are.

1, 5, 163, 815

GCD of numbers is the greatest common divisor

So, the GCD (129, 437, 388, 815) = 1.

Given numbers are 129, 437, 388, 815

The list of prime factors of all numbers are

Prime factors of 129 are 3 x 43

Prime factors of 437 are 19 x 23

Prime factors of 388 are 2 x 2 x 97

Prime factors of 815 are 5 x 163

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

Given numbers are 129, 437, 388, 815

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

Apply this formula for all numbers.

Step1:

LCM(129, 437) = 56373

GCD(129, 437) = ( 129 x 437 ) / 56373

= 129 / 437

= 129

Step2:

LCM(1, 388) = 388

GCD(1, 388) = ( 1 x 388 ) / 388

= 1 / 388

= 1

Step3:

LCM(1, 815) = 815

GCD(1, 815) = ( 1 x 815 ) / 815

= 1 / 815

= 1

So, Greatest Common Divisor of 129, 437, 388, 815 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 778, 791, 211, 132
• GCD of 789, 271, 640, 944
• GCD of 933, 745, 139, 316
• GCD of 168, 546, 220, 244
• GCD of 688, 360, 383, 398

Given numbers are 129, 437, 388, 815
The greatest common divisor of numbers 129, 437, 388, 815 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 129, 437, 388, 815 is 1.

1. What is the GCD of 129, 437, 388, 815?

GCD of given numbers 129, 437, 388, 815 is 1

2. How to calculate the greatest common divisor of 129, 437, 388, 815?

We can find the highest common divisor of 129, 437, 388, 815 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, 437, 388, 815 i.e 1.

3. How can I use the GCD of 129, 437, 388, 815Calculator?

Out the numbers 129, 437, 388, 815 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.