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GCD of 420, 725, 17 Calculator

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


Online GCD Calculator is useful to find the GCD of 420, 725, 17 quickly. Get the easiest ways to solve the greatest common divisor of 420, 725, 17 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 420, 725, 17 with Factoring?

Given Input numbers are 420, 725, 17

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

Divisors of 420 :

The positive integer divisors of 420 that completely divides 420 are.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

Divisors of 725 :

The positive integer divisors of 725 that completely divides 725 are.

1, 5, 25, 29, 145, 725

Divisors of 17 :

The positive integer divisors of 17 that completely divides 17 are.

1, 17


GCD of numbers is the greatest common divisor

So, the GCD (420, 725, 17) = 1.

Find GCD of 420, 725, 17 using Prime Factorization

Given numbers are 420, 725, 17

The list of prime factors of all numbers are

Prime factors of 420 are 2 x 2 x 3 x 5 x 7

Prime factors of 725 are 5 x 5 x 29

Prime factors of 17 are 17

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

Steps to Calculate GCD of 420, 725, 17 using LCM Formula

Given numbers are 420, 725, 17

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

Apply this formula for all numbers.

Step1:

LCM(420, 725) = 60900

GCD(420, 725) = ( 420 x 725 ) / 60900

= 420 / 725

= 420


Step2:

LCM(5, 17) = 85

GCD(5, 17) = ( 5 x 17 ) / 85

= 5 / 17

= 5


So, Greatest Common Divisor of 420, 725, 17 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 420, 725, 17

Given numbers are 420, 725, 17
The greatest common divisor of numbers 420, 725, 17 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 420, 725, 17 is 1.

FAQs on GCD of 420, 725, 17 Calculator

1. What is the GCD of 420, 725, 17?

GCD of given numbers 420, 725, 17 is 1


2. How to calculate the greatest common divisor of 420, 725, 17?

We can find the highest common divisor of 420, 725, 17 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 420, 725, 17 i.e 1.


3. How can I use the GCD of 420, 725, 17Calculator?

Out the numbers 420, 725, 17 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.