GCD of 981, 156, 20 Calculator

Given Input numbers are 981, 156, 20

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

Divisors of 981 :

The positive integer divisors of 981 that completely divides 981 are.

1, 3, 9, 109, 327, 981

Divisors of 156 :

The positive integer divisors of 156 that completely divides 156 are.

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

Divisors of 20 :

The positive integer divisors of 20 that completely divides 20 are.

1, 2, 4, 5, 10, 20

GCD of numbers is the greatest common divisor

So, the GCD (981, 156, 20) = 1.

Given numbers are 981, 156, 20

The list of prime factors of all numbers are

Prime factors of 981 are 3 x 3 x 109

Prime factors of 156 are 2 x 2 x 3 x 13

Prime factors of 20 are 2 x 2 x 5

The above numbers do not have any common prime factor. So GCD is 1

Given numbers are 981, 156, 20

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

Apply this formula for all numbers.

Step1:

LCM(981, 156) = 51012

GCD(981, 156) = ( 981 x 156 ) / 51012

= 981 / 156

= 981

Step2:

LCM(3, 20) = 60

GCD(3, 20) = ( 3 x 20 ) / 60

= 3 / 20

= 3

So, Greatest Common Divisor of 981, 156, 20 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 736, 786, 35
• GCD of 133, 433, 50
• GCD of 700, 188, 16
• GCD of 655, 774, 43
• GCD of 464, 180, 47

Given numbers are 981, 156, 20
The greatest common divisor of numbers 981, 156, 20 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 981, 156, 20 is 1.

1. What is the GCD of 981, 156, 20?

GCD of given numbers 981, 156, 20 is 1

2. How to calculate the greatest common divisor of 981, 156, 20?

We can find the highest common divisor of 981, 156, 20 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 981, 156, 20 i.e 1.

3. How can I use the GCD of 981, 156, 20Calculator?

Out the numbers 981, 156, 20 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.