GCD of 143, 531, 645, 398 Calculator

Given Input numbers are 143, 531, 645, 398

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

Divisors of 143 :

The positive integer divisors of 143 that completely divides 143 are.

1, 11, 13, 143

Divisors of 531 :

The positive integer divisors of 531 that completely divides 531 are.

1, 3, 9, 59, 177, 531

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 398 :

The positive integer divisors of 398 that completely divides 398 are.

1, 2, 199, 398

GCD of numbers is the greatest common divisor

So, the GCD (143, 531, 645, 398) = 1.

Given numbers are 143, 531, 645, 398

The list of prime factors of all numbers are

Prime factors of 143 are 11 x 13

Prime factors of 531 are 3 x 3 x 59

Prime factors of 645 are 3 x 5 x 43

Prime factors of 398 are 2 x 199

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

Given numbers are 143, 531, 645, 398

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

Apply this formula for all numbers.

Step1:

LCM(143, 531) = 75933

GCD(143, 531) = ( 143 x 531 ) / 75933

= 143 / 531

= 143

Step2:

LCM(1, 645) = 645

GCD(1, 645) = ( 1 x 645 ) / 645

= 1 / 645

= 1

Step3:

LCM(1, 398) = 398

GCD(1, 398) = ( 1 x 398 ) / 398

= 1 / 398

= 1

So, Greatest Common Divisor of 143, 531, 645, 398 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 522, 576, 457, 741
• GCD of 301, 800, 449, 471
• GCD of 760, 170, 382, 320
• GCD of 423, 627, 686, 810
• GCD of 114, 801, 236, 596

Given numbers are 143, 531, 645, 398
The greatest common divisor of numbers 143, 531, 645, 398 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 143, 531, 645, 398 is 1.

1. What is the GCD of 143, 531, 645, 398?

GCD of given numbers 143, 531, 645, 398 is 1

2. How to calculate the greatest common divisor of 143, 531, 645, 398?

We can find the highest common divisor of 143, 531, 645, 398 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 143, 531, 645, 398 i.e 1.

3. How can I use the GCD of 143, 531, 645, 398Calculator?

Out the numbers 143, 531, 645, 398 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.