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GCD of 31, 18, 20, 63 Calculator

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023


Online GCD Calculator is useful to find the GCD of 31, 18, 20, 63 quickly. Get the easiest ways to solve the greatest common divisor of 31, 18, 20, 63 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 31, 18, 20, 63 with Factoring?

Given Input numbers are 31, 18, 20, 63

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

Divisors of 31 :

The positive integer divisors of 31 that completely divides 31 are.

1, 31

Divisors of 18 :

The positive integer divisors of 18 that completely divides 18 are.

1, 2, 3, 6, 9, 18

Divisors of 20 :

The positive integer divisors of 20 that completely divides 20 are.

1, 2, 4, 5, 10, 20

Divisors of 63 :

The positive integer divisors of 63 that completely divides 63 are.

1, 3, 7, 9, 21, 63


GCD of numbers is the greatest common divisor

So, the GCD (31, 18, 20, 63) = 1.

Find GCD of 31, 18, 20, 63 using Prime Factorization

Given numbers are 31, 18, 20, 63

The list of prime factors of all numbers are

Prime factors of 31 are 31

Prime factors of 18 are 2 x 3 x 3

Prime factors of 20 are 2 x 2 x 5

Prime factors of 63 are 3 x 3 x 7

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

Steps to Calculate GCD of 31, 18, 20, 63 using LCM Formula

Given numbers are 31, 18, 20, 63

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

Apply this formula for all numbers.

Step1:

LCM(31, 18) = 558

GCD(31, 18) = ( 31 x 18 ) / 558

= 31 / 18

= 31


Step2:

LCM(1, 20) = 20

GCD(1, 20) = ( 1 x 20 ) / 20

= 1 / 20

= 1


Step3:

LCM(1, 63) = 63

GCD(1, 63) = ( 1 x 63 ) / 63

= 1 / 63

= 1


So, Greatest Common Divisor of 31, 18, 20, 63 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 31, 18, 20, 63

Given numbers are 31, 18, 20, 63
The greatest common divisor of numbers 31, 18, 20, 63 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 31, 18, 20, 63 is 1.

FAQs on GCD of 31, 18, 20, 63 Calculator

1. What is the GCD of 31, 18, 20, 63?

GCD of given numbers 31, 18, 20, 63 is 1


2. How to calculate the greatest common divisor of 31, 18, 20, 63?

We can find the highest common divisor of 31, 18, 20, 63 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 31, 18, 20, 63 i.e 1.


3. How can I use the GCD of 31, 18, 20, 63Calculator?

Out the numbers 31, 18, 20, 63 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.