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GCD of 421, 370, 644, 765 Calculator

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


Online GCD Calculator is useful to find the GCD of 421, 370, 644, 765 quickly. Get the easiest ways to solve the greatest common divisor of 421, 370, 644, 765 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 421, 370, 644, 765 with Factoring?

Given Input numbers are 421, 370, 644, 765

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

Divisors of 421 :

The positive integer divisors of 421 that completely divides 421 are.

1, 421

Divisors of 370 :

The positive integer divisors of 370 that completely divides 370 are.

1, 2, 5, 10, 37, 74, 185, 370

Divisors of 644 :

The positive integer divisors of 644 that completely divides 644 are.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 765 :

The positive integer divisors of 765 that completely divides 765 are.

1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765


GCD of numbers is the greatest common divisor

So, the GCD (421, 370, 644, 765) = 1.

Find GCD of 421, 370, 644, 765 using Prime Factorization

Given numbers are 421, 370, 644, 765

The list of prime factors of all numbers are

Prime factors of 421 are 421

Prime factors of 370 are 2 x 5 x 37

Prime factors of 644 are 2 x 2 x 7 x 23

Prime factors of 765 are 3 x 3 x 5 x 17

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

Steps to Calculate GCD of 421, 370, 644, 765 using LCM Formula

Given numbers are 421, 370, 644, 765

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

Apply this formula for all numbers.

Step1:

LCM(421, 370) = 155770

GCD(421, 370) = ( 421 x 370 ) / 155770

= 421 / 370

= 421


Step2:

LCM(1, 644) = 644

GCD(1, 644) = ( 1 x 644 ) / 644

= 1 / 644

= 1


Step3:

LCM(1, 765) = 765

GCD(1, 765) = ( 1 x 765 ) / 765

= 1 / 765

= 1


So, Greatest Common Divisor of 421, 370, 644, 765 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 421, 370, 644, 765

Given numbers are 421, 370, 644, 765
The greatest common divisor of numbers 421, 370, 644, 765 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 421, 370, 644, 765 is 1.

FAQs on GCD of 421, 370, 644, 765 Calculator

1. What is the GCD of 421, 370, 644, 765?

GCD of given numbers 421, 370, 644, 765 is 1


2. How to calculate the greatest common divisor of 421, 370, 644, 765?

We can find the highest common divisor of 421, 370, 644, 765 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 421, 370, 644, 765 i.e 1.


3. How can I use the GCD of 421, 370, 644, 765Calculator?

Out the numbers 421, 370, 644, 765 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.