GCD of 457, 379, 69, 644 Calculator

Given Input numbers are 457, 379, 69, 644

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 457

List of positive integer divisors of 457 that divides 457 without a remainder.

1, 457

Divisors of 379

List of positive integer divisors of 379 that divides 379 without a remainder.

1, 379

Divisors of 69

List of positive integer divisors of 69 that divides 69 without a remainder.

1, 3, 23, 69

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

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

Greatest Common Divisior

We found the divisors of 457, 379, 69, 644 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 457, 379, 69, 644 is 1.

Therefore, GCD of numbers 457, 379, 69, 644 is 1

Given Input Data is 457, 379, 69, 644

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 457 is 457

Prime Factorization of 379 is 379

Prime Factorization of 69 is 3 x 23

Prime Factorization of 644 is 2 x 2 x 7 x 23

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

Step1:

Let's calculate the GCD of first two numbers

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

LCM(457, 379) = 173203

GCD(457, 379) = ( 457 x 379 ) / 173203

GCD(457, 379) = 173203 / 173203

GCD(457, 379) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 69

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

LCM(1, 69) = 69

GCD(1, 69) = ( 1 x 69 ) / 69

GCD(1, 69) = 69 / 69

GCD(1, 69) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 644

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

LCM(1, 644) = 644

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

GCD(1, 644) = 644 / 644

GCD(1, 644) = 1

GCD of 457, 379, 69, 644 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 536, 997, 63, 813
• GCD of 768, 926, 47, 529
• GCD of 826, 588, 57, 306
• GCD of 476, 915, 68, 355
• GCD of 610, 481, 85, 233

1. What is the GCD of 457, 379, 69, 644?

GCD of 457, 379, 69, 644 is 1

2. Where do I get the detailed procedure to find GCD of 457, 379, 69, 644?

You can find a detailed procedure to find GCD of 457, 379, 69, 644 on our page.

3. How to find GCD of 457, 379, 69, 644 on a calculator?

You can find the GCD of 457, 379, 69, 644 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.