GCD of 66, 20, 66, 86 Calculator

Given Input numbers are 66, 20, 66, 86

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

Divisors of 66

List of positive integer divisors of 66 that divides 66 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66

Divisors of 20

List of positive integer divisors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10, 20

Divisors of 66

List of positive integer divisors of 66 that divides 66 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66

Divisors of 86

List of positive integer divisors of 86 that divides 86 without a remainder.

1, 2, 43, 86

Greatest Common Divisior

We found the divisors of 66, 20, 66, 86 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 66, 20, 66, 86 is 2.

Therefore, GCD of numbers 66, 20, 66, 86 is 2

Given Input Data is 66, 20, 66, 86

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

Prime Factorization of 66 is 2 x 3 x 11

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 66 is 2 x 3 x 11

Prime Factorization of 86 is 2 x 43

Highest common occurrences in the given inputs are 2¹

Multiplying them we get the GCD as 2

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(66, 20) = 660

GCD(66, 20) = ( 66 x 20 ) / 660

GCD(66, 20) = 1320 / 660

GCD(66, 20) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 66

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

LCM(2, 66) = 66

GCD(2, 66) = ( 2 x 66 ) / 66

GCD(2, 66) = 132 / 66

GCD(2, 66) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 86

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

LCM(2, 86) = 86

GCD(2, 86) = ( 2 x 86 ) / 86

GCD(2, 86) = 172 / 86

GCD(2, 86) = 2

GCD of 66, 20, 66, 86 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 12, 90, 41, 98
• GCD of 35, 17, 87, 41
• GCD of 65, 94, 58, 95
• GCD of 35, 35, 90, 65
• GCD of 99, 88, 45, 36

1. What is the GCD of 66, 20, 66, 86?

GCD of 66, 20, 66, 86 is 2

2. Where do I get the detailed procedure to find GCD of 66, 20, 66, 86?

You can find a detailed procedure to find GCD of 66, 20, 66, 86 on our page.

3. How to find GCD of 66, 20, 66, 86 on a calculator?

You can find the GCD of 66, 20, 66, 86 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.