GCD of 221, 690, 392 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 221, 690, 392 quickly. Get the easiest ways to solve the greatest common divisor of 221, 690, 392 i.e 1 in different methods as follows.
Given Input numbers are 221, 690, 392
In the factoring method, we have to find the divisors of all numbers
Divisors of 221 :
The positive integer divisors of 221 that completely divides 221 are.
1, 13, 17, 221
Divisors of 690 :
The positive integer divisors of 690 that completely divides 690 are.
1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
Divisors of 392 :
The positive integer divisors of 392 that completely divides 392 are.
1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392
GCD of numbers is the greatest common divisor
So, the GCD (221, 690, 392) = 1.
Given numbers are 221, 690, 392
The list of prime factors of all numbers are
Prime factors of 221 are 13 x 17
Prime factors of 690 are 2 x 3 x 5 x 23
Prime factors of 392 are 2 x 2 x 2 x 7 x 7
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 221, 690, 392 using LCM Formula
Given numbers are 221, 690, 392
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(221, 690) = 152490
GCD(221, 690) = ( 221 x 690 ) / 152490
= 221 / 690
= 221
Step2:
LCM(1, 392) = 392
GCD(1, 392) = ( 1 x 392 ) / 392
= 1 / 392
= 1
So, Greatest Common Divisor of 221, 690, 392 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 221, 690, 392
Given numbers are 221, 690, 392
The greatest common divisor of numbers 221, 690, 392 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 221, 690, 392 is 1.
FAQs on GCD of 221, 690, 392 Calculator
1. What is the GCD of 221, 690, 392?
GCD of given numbers 221, 690, 392 is 1
2. How to calculate the greatest common divisor of 221, 690, 392?
We can find the highest common divisor of 221, 690, 392 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 221, 690, 392 i.e 1.
3. How can I use the GCD of 221, 690, 392Calculator?
Out the numbers 221, 690, 392 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.