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GCD of 90, 65, 81, 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 90, 65, 81, 63 quickly. Get the easiest ways to solve the greatest common divisor of 90, 65, 81, 63 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 90, 65, 81, 63 with Factoring?

Given Input numbers are 90, 65, 81, 63

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

Divisors of 90 :

The positive integer divisors of 90 that completely divides 90 are.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

Divisors of 65 :

The positive integer divisors of 65 that completely divides 65 are.

1, 5, 13, 65

Divisors of 81 :

The positive integer divisors of 81 that completely divides 81 are.

1, 3, 9, 27, 81

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 (90, 65, 81, 63) = 1.

Find GCD of 90, 65, 81, 63 using Prime Factorization

Given numbers are 90, 65, 81, 63

The list of prime factors of all numbers are

Prime factors of 90 are 2 x 3 x 3 x 5

Prime factors of 65 are 5 x 13

Prime factors of 81 are 3 x 3 x 3 x 3

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 90, 65, 81, 63 using LCM Formula

Given numbers are 90, 65, 81, 63

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

Apply this formula for all numbers.

Step1:

LCM(90, 65) = 1170

GCD(90, 65) = ( 90 x 65 ) / 1170

= 90 / 65

= 90


Step2:

LCM(5, 81) = 405

GCD(5, 81) = ( 5 x 81 ) / 405

= 5 / 81

= 5


Step3:

LCM(1, 63) = 63

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

= 1 / 63

= 1


So, Greatest Common Divisor of 90, 65, 81, 63 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 90, 65, 81, 63

Given numbers are 90, 65, 81, 63
The greatest common divisor of numbers 90, 65, 81, 63 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 90, 65, 81, 63 is 1.

FAQs on GCD of 90, 65, 81, 63 Calculator

1. What is the GCD of 90, 65, 81, 63?

GCD of given numbers 90, 65, 81, 63 is 1


2. How to calculate the greatest common divisor of 90, 65, 81, 63?

We can find the highest common divisor of 90, 65, 81, 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 90, 65, 81, 63 i.e 1.


3. How can I use the GCD of 90, 65, 81, 63Calculator?

Out the numbers 90, 65, 81, 63 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.