GCD of 658, 157, 70, 388 Calculator

Given Input numbers are 658, 157, 70, 388

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

Divisors of 658

List of positive integer divisors of 658 that divides 658 without a remainder.

1, 2, 7, 14, 47, 94, 329, 658

Divisors of 157

List of positive integer divisors of 157 that divides 157 without a remainder.

1, 157

Divisors of 70

List of positive integer divisors of 70 that divides 70 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70

Divisors of 388

List of positive integer divisors of 388 that divides 388 without a remainder.

1, 2, 4, 97, 194, 388

Greatest Common Divisior

We found the divisors of 658, 157, 70, 388 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 658, 157, 70, 388 is 1.

Therefore, GCD of numbers 658, 157, 70, 388 is 1

Given Input Data is 658, 157, 70, 388

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

Prime Factorization of 658 is 2 x 7 x 47

Prime Factorization of 157 is 157

Prime Factorization of 70 is 2 x 5 x 7

Prime Factorization of 388 is 2 x 2 x 97

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(658, 157) = 103306

GCD(658, 157) = ( 658 x 157 ) / 103306

GCD(658, 157) = 103306 / 103306

GCD(658, 157) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 70

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

LCM(1, 70) = 70

GCD(1, 70) = ( 1 x 70 ) / 70

GCD(1, 70) = 70 / 70

GCD(1, 70) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 388

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

LCM(1, 388) = 388

GCD(1, 388) = ( 1 x 388 ) / 388

GCD(1, 388) = 388 / 388

GCD(1, 388) = 1

GCD of 658, 157, 70, 388 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 120, 702, 16, 770
• GCD of 569, 139, 38, 855
• GCD of 856, 926, 52, 105
• GCD of 472, 296, 13, 292
• GCD of 375, 445, 69, 912

1. What is the GCD of 658, 157, 70, 388?

GCD of 658, 157, 70, 388 is 1

2. Where do I get the detailed procedure to find GCD of 658, 157, 70, 388?

You can find a detailed procedure to find GCD of 658, 157, 70, 388 on our page.

3. How to find GCD of 658, 157, 70, 388 on a calculator?

You can find the GCD of 658, 157, 70, 388 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.