GCD of 87, 72, 81, 49 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 87, 72, 81, 49 quickly. Get the easiest ways to solve the greatest common divisor of 87, 72, 81, 49 i.e 1 in different methods as follows.
Given Input numbers are 87, 72, 81, 49
In the factoring method, we have to find the divisors of all numbers
Divisors of 87 :
The positive integer divisors of 87 that completely divides 87 are.
1, 3, 29, 87
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 81 :
The positive integer divisors of 81 that completely divides 81 are.
1, 3, 9, 27, 81
Divisors of 49 :
The positive integer divisors of 49 that completely divides 49 are.
1, 7, 49
GCD of numbers is the greatest common divisor
So, the GCD (87, 72, 81, 49) = 1.
Given numbers are 87, 72, 81, 49
The list of prime factors of all numbers are
Prime factors of 87 are 3 x 29
Prime factors of 72 are 2 x 2 x 2 x 3 x 3
Prime factors of 81 are 3 x 3 x 3 x 3
Prime factors of 49 are 7 x 7
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 87, 72, 81, 49 using LCM Formula
Given numbers are 87, 72, 81, 49
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(87, 72) = 2088
GCD(87, 72) = ( 87 x 72 ) / 2088
= 87 / 72
= 87
Step2:
LCM(3, 81) = 81
GCD(3, 81) = ( 3 x 81 ) / 81
= 3 / 81
= 3
Step3:
LCM(3, 49) = 147
GCD(3, 49) = ( 3 x 49 ) / 147
= 3 / 49
= 3
So, Greatest Common Divisor of 87, 72, 81, 49 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 87, 72, 81, 49
Given numbers are 87, 72, 81, 49
The greatest common divisor of numbers 87, 72, 81, 49 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 87, 72, 81, 49 is 1.
FAQs on GCD of 87, 72, 81, 49 Calculator
1. What is the GCD of 87, 72, 81, 49?
GCD of given numbers 87, 72, 81, 49 is 1
2. How to calculate the greatest common divisor of 87, 72, 81, 49?
We can find the highest common divisor of 87, 72, 81, 49 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 87, 72, 81, 49 i.e 1.
3. How can I use the GCD of 87, 72, 81, 49Calculator?
Out the numbers 87, 72, 81, 49 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.