GCD of 170, 766, 61, 155 Calculator

Given Input numbers are 170, 766, 61, 155

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

Divisors of 170

List of positive integer divisors of 170 that divides 170 without a remainder.

1, 2, 5, 10, 17, 34, 85, 170

Divisors of 766

List of positive integer divisors of 766 that divides 766 without a remainder.

1, 2, 383, 766

Divisors of 61

List of positive integer divisors of 61 that divides 61 without a remainder.

1, 61

Divisors of 155

List of positive integer divisors of 155 that divides 155 without a remainder.

1, 5, 31, 155

Greatest Common Divisior

We found the divisors of 170, 766, 61, 155 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 170, 766, 61, 155 is 1.

Therefore, GCD of numbers 170, 766, 61, 155 is 1

Given Input Data is 170, 766, 61, 155

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

Prime Factorization of 170 is 2 x 5 x 17

Prime Factorization of 766 is 2 x 383

Prime Factorization of 61 is 61

Prime Factorization of 155 is 5 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(170, 766) = 65110

GCD(170, 766) = ( 170 x 766 ) / 65110

GCD(170, 766) = 130220 / 65110

GCD(170, 766) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 61

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

LCM(2, 61) = 122

GCD(2, 61) = ( 2 x 61 ) / 122

GCD(2, 61) = 122 / 122

GCD(2, 61) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 155

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

LCM(1, 155) = 155

GCD(1, 155) = ( 1 x 155 ) / 155

GCD(1, 155) = 155 / 155

GCD(1, 155) = 1

GCD of 170, 766, 61, 155 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 106, 673, 32, 683
• GCD of 932, 128, 14, 792
• GCD of 156, 819, 12, 697
• GCD of 782, 432, 29, 732
• GCD of 551, 617, 32, 630

1. What is the GCD of 170, 766, 61, 155?

GCD of 170, 766, 61, 155 is 1

2. Where do I get the detailed procedure to find GCD of 170, 766, 61, 155?

You can find a detailed procedure to find GCD of 170, 766, 61, 155 on our page.

3. How to find GCD of 170, 766, 61, 155 on a calculator?

You can find the GCD of 170, 766, 61, 155 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.