GCD of 261, 660, 155 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 261, 660, 155 quickly. Get the easiest ways to solve the greatest common divisor of 261, 660, 155 i.e 1 in different methods as follows.
Given Input numbers are 261, 660, 155
In the factoring method, we have to find the divisors of all numbers
Divisors of 261 :
The positive integer divisors of 261 that completely divides 261 are.
1, 3, 9, 29, 87, 261
Divisors of 660 :
The positive integer divisors of 660 that completely divides 660 are.
1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
Divisors of 155 :
The positive integer divisors of 155 that completely divides 155 are.
1, 5, 31, 155
GCD of numbers is the greatest common divisor
So, the GCD (261, 660, 155) = 1.
Given numbers are 261, 660, 155
The list of prime factors of all numbers are
Prime factors of 261 are 3 x 3 x 29
Prime factors of 660 are 2 x 2 x 3 x 5 x 11
Prime factors of 155 are 5 x 31
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 261, 660, 155 using LCM Formula
Given numbers are 261, 660, 155
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(261, 660) = 57420
GCD(261, 660) = ( 261 x 660 ) / 57420
= 261 / 660
= 261
Step2:
LCM(3, 155) = 465
GCD(3, 155) = ( 3 x 155 ) / 465
= 3 / 155
= 3
So, Greatest Common Divisor of 261, 660, 155 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 261, 660, 155
Given numbers are 261, 660, 155
The greatest common divisor of numbers 261, 660, 155 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 261, 660, 155 is 1.
FAQs on GCD of 261, 660, 155 Calculator
1. What is the GCD of 261, 660, 155?
GCD of given numbers 261, 660, 155 is 1
2. How to calculate the greatest common divisor of 261, 660, 155?
We can find the highest common divisor of 261, 660, 155 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 261, 660, 155 i.e 1.
3. How can I use the GCD of 261, 660, 155Calculator?
Out the numbers 261, 660, 155 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.