GCD of 645, 357, 249 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 645, 357, 249 quickly. Get the easiest ways to solve the greatest common divisor of 645, 357, 249 i.e 3 in different methods as follows.
Given Input numbers are 645, 357, 249
In the factoring method, we have to find the divisors of all numbers
Divisors of 645 :
The positive integer divisors of 645 that completely divides 645 are.
1, 3, 5, 15, 43, 129, 215, 645
Divisors of 357 :
The positive integer divisors of 357 that completely divides 357 are.
1, 3, 7, 17, 21, 51, 119, 357
Divisors of 249 :
The positive integer divisors of 249 that completely divides 249 are.
1, 3, 83, 249
GCD of numbers is the greatest common divisor
So, the GCD (645, 357, 249) = 3.
Given numbers are 645, 357, 249
The list of prime factors of all numbers are
Prime factors of 645 are 3 x 5 x 43
Prime factors of 357 are 3 x 7 x 17
Prime factors of 249 are 3 x 83
The highest common occurrence is 31
Therefore, GCD of 645, 357, 249 is 3.
Steps to Calculate GCD of 645, 357, 249 using LCM Formula
Given numbers are 645, 357, 249
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(645, 357) = 76755
GCD(645, 357) = ( 645 x 357 ) / 76755
= 645 / 357
= 645
Step2:
LCM(3, 249) = 249
GCD(3, 249) = ( 3 x 249 ) / 249
= 3 / 249
= 3
So, Greatest Common Divisor of 645, 357, 249 is 3
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 645, 357, 249
Given numbers are 645, 357, 249
The greatest common divisor of numbers 645, 357, 249 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 645, 357, 249 is 3.
FAQs on GCD of 645, 357, 249 Calculator
1. What is the GCD of 645, 357, 249?
GCD of given numbers 645, 357, 249 is 3
2. How to calculate the greatest common divisor of 645, 357, 249?
We can find the highest common divisor of 645, 357, 249 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 645, 357, 249 i.e 3.
3. How can I use the GCD of 645, 357, 249Calculator?
Out the numbers 645, 357, 249 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.