GCD of 620, 666, 662, 161 Calculator

Given Input numbers are 620, 666, 662, 161

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

Divisors of 620

List of positive integer divisors of 620 that divides 620 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Divisors of 666

List of positive integer divisors of 666 that divides 666 without a remainder.

1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666

Divisors of 662

List of positive integer divisors of 662 that divides 662 without a remainder.

1, 2, 331, 662

Divisors of 161

List of positive integer divisors of 161 that divides 161 without a remainder.

1, 7, 23, 161

Greatest Common Divisior

We found the divisors of 620, 666, 662, 161 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 620, 666, 662, 161 is 1.

Therefore, GCD of numbers 620, 666, 662, 161 is 1

Given Input Data is 620, 666, 662, 161

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

Prime Factorization of 620 is 2 x 2 x 5 x 31

Prime Factorization of 666 is 2 x 3 x 3 x 37

Prime Factorization of 662 is 2 x 331

Prime Factorization of 161 is 7 x 23

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(620, 666) = 206460

GCD(620, 666) = ( 620 x 666 ) / 206460

GCD(620, 666) = 412920 / 206460

GCD(620, 666) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 662

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

LCM(2, 662) = 662

GCD(2, 662) = ( 2 x 662 ) / 662

GCD(2, 662) = 1324 / 662

GCD(2, 662) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 161

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

LCM(2, 161) = 322

GCD(2, 161) = ( 2 x 161 ) / 322

GCD(2, 161) = 322 / 322

GCD(2, 161) = 1

GCD of 620, 666, 662, 161 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 735, 731, 253, 433
• GCD of 328, 841, 167, 358
• GCD of 171, 666, 332, 938
• GCD of 942, 853, 223, 452
• GCD of 471, 308, 132, 513

1. What is the GCD of 620, 666, 662, 161?

GCD of 620, 666, 662, 161 is 1

2. Where do I get the detailed procedure to find GCD of 620, 666, 662, 161?

You can find a detailed procedure to find GCD of 620, 666, 662, 161 on our page.

3. How to find GCD of 620, 666, 662, 161 on a calculator?

You can find the GCD of 620, 666, 662, 161 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.