GCD of 640, 390, 143, 700 Calculator

Given Input numbers are 640, 390, 143, 700

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

Divisors of 640

List of positive integer divisors of 640 that divides 640 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

Divisors of 390

List of positive integer divisors of 390 that divides 390 without a remainder.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 143

List of positive integer divisors of 143 that divides 143 without a remainder.

1, 11, 13, 143

Divisors of 700

List of positive integer divisors of 700 that divides 700 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700

Greatest Common Divisior

We found the divisors of 640, 390, 143, 700 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 640, 390, 143, 700 is 1.

Therefore, GCD of numbers 640, 390, 143, 700 is 1

Given Input Data is 640, 390, 143, 700

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

Prime Factorization of 640 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

Prime Factorization of 390 is 2 x 3 x 5 x 13

Prime Factorization of 143 is 11 x 13

Prime Factorization of 700 is 2 x 2 x 5 x 5 x 7

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(640, 390) = 24960

GCD(640, 390) = ( 640 x 390 ) / 24960

GCD(640, 390) = 249600 / 24960

GCD(640, 390) = 10

Step2:

Here we consider the GCD from the above i.e. 10 as first number and the next as 143

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

LCM(10, 143) = 1430

GCD(10, 143) = ( 10 x 143 ) / 1430

GCD(10, 143) = 1430 / 1430

GCD(10, 143) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 700

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

LCM(1, 700) = 700

GCD(1, 700) = ( 1 x 700 ) / 700

GCD(1, 700) = 700 / 700

GCD(1, 700) = 1

GCD of 640, 390, 143, 700 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 912, 143, 565, 390
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• GCD of 627, 861, 273, 731
• GCD of 938, 958, 102, 166
• GCD of 940, 994, 564, 970

1. What is the GCD of 640, 390, 143, 700?

GCD of 640, 390, 143, 700 is 1

2. Where do I get the detailed procedure to find GCD of 640, 390, 143, 700?

You can find a detailed procedure to find GCD of 640, 390, 143, 700 on our page.

3. How to find GCD of 640, 390, 143, 700 on a calculator?

You can find the GCD of 640, 390, 143, 700 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.