GCD of 72, 20, 55, 64 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 72, 20, 55, 64 quickly. Get the easiest ways to solve the greatest common divisor of 72, 20, 55, 64 i.e 1 in different methods as follows.
Given Input numbers are 72, 20, 55, 64
In the factoring method, we have to find the divisors of all numbers
Divisors of 72 :
The positive integer divisors of 72 that completely divides 72 are.
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
Divisors of 20 :
The positive integer divisors of 20 that completely divides 20 are.
1, 2, 4, 5, 10, 20
Divisors of 55 :
The positive integer divisors of 55 that completely divides 55 are.
1, 5, 11, 55
Divisors of 64 :
The positive integer divisors of 64 that completely divides 64 are.
1, 2, 4, 8, 16, 32, 64
GCD of numbers is the greatest common divisor
So, the GCD (72, 20, 55, 64) = 1.
Given numbers are 72, 20, 55, 64
The list of prime factors of all numbers are
Prime factors of 72 are 2 x 2 x 2 x 3 x 3
Prime factors of 20 are 2 x 2 x 5
Prime factors of 55 are 5 x 11
Prime factors of 64 are 2 x 2 x 2 x 2 x 2 x 2
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 72, 20, 55, 64 using LCM Formula
Given numbers are 72, 20, 55, 64
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(72, 20) = 360
GCD(72, 20) = ( 72 x 20 ) / 360
= 72 / 20
= 72
Step2:
LCM(4, 55) = 220
GCD(4, 55) = ( 4 x 55 ) / 220
= 4 / 55
= 4
Step3:
LCM(1, 64) = 64
GCD(1, 64) = ( 1 x 64 ) / 64
= 1 / 64
= 1
So, Greatest Common Divisor of 72, 20, 55, 64 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 72, 20, 55, 64
Given numbers are 72, 20, 55, 64
The greatest common divisor of numbers 72, 20, 55, 64 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 72, 20, 55, 64 is 1.
FAQs on GCD of 72, 20, 55, 64 Calculator
1. What is the GCD of 72, 20, 55, 64?
GCD of given numbers 72, 20, 55, 64 is 1
2. How to calculate the greatest common divisor of 72, 20, 55, 64?
We can find the highest common divisor of 72, 20, 55, 64 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 72, 20, 55, 64 i.e 1.
3. How can I use the GCD of 72, 20, 55, 64Calculator?
Out the numbers 72, 20, 55, 64 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.