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GCD of 123, 205, 221, 698 Calculator

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023


Online GCD Calculator is useful to find the GCD of 123, 205, 221, 698 quickly. Get the easiest ways to solve the greatest common divisor of 123, 205, 221, 698 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 123, 205, 221, 698 with Factoring?

Given Input numbers are 123, 205, 221, 698

In the factoring method, we have to find the divisors of all numbers

Divisors of 123 :

The positive integer divisors of 123 that completely divides 123 are.

1, 3, 41, 123

Divisors of 205 :

The positive integer divisors of 205 that completely divides 205 are.

1, 5, 41, 205

Divisors of 221 :

The positive integer divisors of 221 that completely divides 221 are.

1, 13, 17, 221

Divisors of 698 :

The positive integer divisors of 698 that completely divides 698 are.

1, 2, 349, 698


GCD of numbers is the greatest common divisor

So, the GCD (123, 205, 221, 698) = 1.

Find GCD of 123, 205, 221, 698 using Prime Factorization

Given numbers are 123, 205, 221, 698

The list of prime factors of all numbers are

Prime factors of 123 are 3 x 41

Prime factors of 205 are 5 x 41

Prime factors of 221 are 13 x 17

Prime factors of 698 are 2 x 349

The above numbers do not have any common prime factor. So GCD is 1

Steps to Calculate GCD of 123, 205, 221, 698 using LCM Formula

Given numbers are 123, 205, 221, 698

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(123, 205) = 615

GCD(123, 205) = ( 123 x 205 ) / 615

= 123 / 205

= 123


Step2:

LCM(41, 221) = 9061

GCD(41, 221) = ( 41 x 221 ) / 9061

= 41 / 221

= 41


Step3:

LCM(1, 698) = 698

GCD(1, 698) = ( 1 x 698 ) / 698

= 1 / 698

= 1


So, Greatest Common Divisor of 123, 205, 221, 698 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 123, 205, 221, 698

Given numbers are 123, 205, 221, 698
The greatest common divisor of numbers 123, 205, 221, 698 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 123, 205, 221, 698 is 1.

FAQs on GCD of 123, 205, 221, 698 Calculator

1. What is the GCD of 123, 205, 221, 698?

GCD of given numbers 123, 205, 221, 698 is 1


2. How to calculate the greatest common divisor of 123, 205, 221, 698?

We can find the highest common divisor of 123, 205, 221, 698 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 123, 205, 221, 698 i.e 1.


3. How can I use the GCD of 123, 205, 221, 698Calculator?

Out the numbers 123, 205, 221, 698 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.