GCD of 530, 156, 85, 657 Calculator

Given Input numbers are 530, 156, 85, 657

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

Divisors of 530

List of positive integer divisors of 530 that divides 530 without a remainder.

1, 2, 5, 10, 53, 106, 265, 530

Divisors of 156

List of positive integer divisors of 156 that divides 156 without a remainder.

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

Divisors of 85

List of positive integer divisors of 85 that divides 85 without a remainder.

1, 5, 17, 85

Divisors of 657

List of positive integer divisors of 657 that divides 657 without a remainder.

1, 3, 9, 73, 219, 657

Greatest Common Divisior

We found the divisors of 530, 156, 85, 657 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 530, 156, 85, 657 is 1.

Therefore, GCD of numbers 530, 156, 85, 657 is 1

Given Input Data is 530, 156, 85, 657

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

Prime Factorization of 530 is 2 x 5 x 53

Prime Factorization of 156 is 2 x 2 x 3 x 13

Prime Factorization of 85 is 5 x 17

Prime Factorization of 657 is 3 x 3 x 73

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(530, 156) = 41340

GCD(530, 156) = ( 530 x 156 ) / 41340

GCD(530, 156) = 82680 / 41340

GCD(530, 156) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 85

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

LCM(2, 85) = 170

GCD(2, 85) = ( 2 x 85 ) / 170

GCD(2, 85) = 170 / 170

GCD(2, 85) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 657

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

LCM(1, 657) = 657

GCD(1, 657) = ( 1 x 657 ) / 657

GCD(1, 657) = 657 / 657

GCD(1, 657) = 1

GCD of 530, 156, 85, 657 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 597, 952, 31, 624
• GCD of 278, 112, 68, 777
• GCD of 376, 626, 52, 900
• GCD of 170, 168, 71, 583
• GCD of 618, 680, 94, 661

1. What is the GCD of 530, 156, 85, 657?

GCD of 530, 156, 85, 657 is 1

2. Where do I get the detailed procedure to find GCD of 530, 156, 85, 657?

You can find a detailed procedure to find GCD of 530, 156, 85, 657 on our page.

3. How to find GCD of 530, 156, 85, 657 on a calculator?

You can find the GCD of 530, 156, 85, 657 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.