GCD of 648, 561, 397 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 648, 561, 397 quickly. Get the easiest ways to solve the greatest common divisor of 648, 561, 397 i.e 1 in different methods as follows.
Given Input numbers are 648, 561, 397
In the factoring method, we have to find the divisors of all numbers
Divisors of 648 :
The positive integer divisors of 648 that completely divides 648 are.
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648
Divisors of 561 :
The positive integer divisors of 561 that completely divides 561 are.
1, 3, 11, 17, 33, 51, 187, 561
Divisors of 397 :
The positive integer divisors of 397 that completely divides 397 are.
1, 397
GCD of numbers is the greatest common divisor
So, the GCD (648, 561, 397) = 1.
Given numbers are 648, 561, 397
The list of prime factors of all numbers are
Prime factors of 648 are 2 x 2 x 2 x 3 x 3 x 3 x 3
Prime factors of 561 are 3 x 11 x 17
Prime factors of 397 are 397
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 648, 561, 397 using LCM Formula
Given numbers are 648, 561, 397
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(648, 561) = 121176
GCD(648, 561) = ( 648 x 561 ) / 121176
= 648 / 561
= 648
Step2:
LCM(3, 397) = 1191
GCD(3, 397) = ( 3 x 397 ) / 1191
= 3 / 397
= 3
So, Greatest Common Divisor of 648, 561, 397 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 648, 561, 397
Given numbers are 648, 561, 397
The greatest common divisor of numbers 648, 561, 397 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 648, 561, 397 is 1.
FAQs on GCD of 648, 561, 397 Calculator
1. What is the GCD of 648, 561, 397?
GCD of given numbers 648, 561, 397 is 1
2. How to calculate the greatest common divisor of 648, 561, 397?
We can find the highest common divisor of 648, 561, 397 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 648, 561, 397 i.e 1.
3. How can I use the GCD of 648, 561, 397Calculator?
Out the numbers 648, 561, 397 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.