GCD of 212, 870, 765, 124 Calculator

Given Input numbers are 212, 870, 765, 124

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

Divisors of 212

List of positive integer divisors of 212 that divides 212 without a remainder.

1, 2, 4, 53, 106, 212

Divisors of 870

List of positive integer divisors of 870 that divides 870 without a remainder.

1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870

Divisors of 765

List of positive integer divisors of 765 that divides 765 without a remainder.

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

Divisors of 124

List of positive integer divisors of 124 that divides 124 without a remainder.

1, 2, 4, 31, 62, 124

Greatest Common Divisior

We found the divisors of 212, 870, 765, 124 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 212, 870, 765, 124 is 1.

Therefore, GCD of numbers 212, 870, 765, 124 is 1

Given Input Data is 212, 870, 765, 124

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

Prime Factorization of 212 is 2 x 2 x 53

Prime Factorization of 870 is 2 x 3 x 5 x 29

Prime Factorization of 765 is 3 x 3 x 5 x 17

Prime Factorization of 124 is 2 x 2 x 31

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(212, 870) = 92220

GCD(212, 870) = ( 212 x 870 ) / 92220

GCD(212, 870) = 184440 / 92220

GCD(212, 870) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 765

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

LCM(2, 765) = 1530

GCD(2, 765) = ( 2 x 765 ) / 1530

GCD(2, 765) = 1530 / 1530

GCD(2, 765) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 124

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

LCM(1, 124) = 124

GCD(1, 124) = ( 1 x 124 ) / 124

GCD(1, 124) = 124 / 124

GCD(1, 124) = 1

GCD of 212, 870, 765, 124 is 1

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1. What is the GCD of 212, 870, 765, 124?

GCD of 212, 870, 765, 124 is 1

2. Where do I get the detailed procedure to find GCD of 212, 870, 765, 124?

You can find a detailed procedure to find GCD of 212, 870, 765, 124 on our page.

3. How to find GCD of 212, 870, 765, 124 on a calculator?

You can find the GCD of 212, 870, 765, 124 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.