GCD of 820, 418, 78 Calculator

Given Input numbers are 820, 418, 78

In the factoring method, we have to find the divisors of all numbers

Divisors of 820 :

The positive integer divisors of 820 that completely divides 820 are.

1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820

Divisors of 418 :

The positive integer divisors of 418 that completely divides 418 are.

1, 2, 11, 19, 22, 38, 209, 418

Divisors of 78 :

The positive integer divisors of 78 that completely divides 78 are.

1, 2, 3, 6, 13, 26, 39, 78

GCD of numbers is the greatest common divisor

So, the GCD (820, 418, 78) = 2.

Given numbers are 820, 418, 78

The list of prime factors of all numbers are

Prime factors of 820 are 2 x 2 x 5 x 41

Prime factors of 418 are 2 x 11 x 19

Prime factors of 78 are 2 x 3 x 13

The highest common occurrence is 2¹

Therefore, GCD of 820, 418, 78 is 2.

Given numbers are 820, 418, 78

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(820, 418) = 171380

GCD(820, 418) = ( 820 x 418 ) / 171380

= 820 / 418

= 820

Step2:

LCM(2, 78) = 78

GCD(2, 78) = ( 2 x 78 ) / 78

= 2 / 78

= 2

So, Greatest Common Divisor of 820, 418, 78 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 163, 305, 33
• GCD of 109, 978, 97
• GCD of 251, 168, 41
• GCD of 222, 347, 34
• GCD of 609, 233, 14

Given numbers are 820, 418, 78
The greatest common divisor of numbers 820, 418, 78 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 820, 418, 78 is 2.

1. What is the GCD of 820, 418, 78?

GCD of given numbers 820, 418, 78 is 2

2. How to calculate the greatest common divisor of 820, 418, 78?

We can find the highest common divisor of 820, 418, 78 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 820, 418, 78 i.e 2.

3. How can I use the GCD of 820, 418, 78Calculator?

Out the numbers 820, 418, 78 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.