GCD of 820, 781, 981 Calculator

Given Input numbers are 820, 781, 981

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 781 :

The positive integer divisors of 781 that completely divides 781 are.

1, 11, 71, 781

Divisors of 981 :

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

1, 3, 9, 109, 327, 981

GCD of numbers is the greatest common divisor

So, the GCD (820, 781, 981) = 1.

Given numbers are 820, 781, 981

The list of prime factors of all numbers are

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

Prime factors of 781 are 11 x 71

Prime factors of 981 are 3 x 3 x 109

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

Given numbers are 820, 781, 981

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

Apply this formula for all numbers.

Step1:

LCM(820, 781) = 640420

GCD(820, 781) = ( 820 x 781 ) / 640420

= 820 / 781

= 820

Step2:

LCM(1, 981) = 981

GCD(1, 981) = ( 1 x 981 ) / 981

= 1 / 981

= 1

So, Greatest Common Divisor of 820, 781, 981 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 688, 743, 116
• GCD of 576, 887, 209
• GCD of 965, 904, 343
• GCD of 121, 905, 674
• GCD of 498, 209, 165

Given numbers are 820, 781, 981
The greatest common divisor of numbers 820, 781, 981 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 820, 781, 981 is 1.

1. What is the GCD of 820, 781, 981?

GCD of given numbers 820, 781, 981 is 1

2. How to calculate the greatest common divisor of 820, 781, 981?

We can find the highest common divisor of 820, 781, 981 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, 781, 981 i.e 1.

3. How can I use the GCD of 820, 781, 981Calculator?

Out the numbers 820, 781, 981 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.