GCD of 780, 382, 78, 981 Calculator

Given Input numbers are 780, 382, 78, 981

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

Divisors of 780 :

The positive integer divisors of 780 that completely divides 780 are.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

Divisors of 382 :

The positive integer divisors of 382 that completely divides 382 are.

1, 2, 191, 382

Divisors of 78 :

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

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

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 (780, 382, 78, 981) = 1.

Given numbers are 780, 382, 78, 981

The list of prime factors of all numbers are

Prime factors of 780 are 2 x 2 x 3 x 5 x 13

Prime factors of 382 are 2 x 191

Prime factors of 78 are 2 x 3 x 13

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 780, 382, 78, 981

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

Apply this formula for all numbers.

Step1:

LCM(780, 382) = 148980

GCD(780, 382) = ( 780 x 382 ) / 148980

= 780 / 382

= 780

Step2:

LCM(2, 78) = 78

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

= 2 / 78

= 2

Step3:

LCM(2, 981) = 1962

GCD(2, 981) = ( 2 x 981 ) / 1962

= 2 / 981

= 2

So, Greatest Common Divisor of 780, 382, 78, 981 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 691, 870, 58, 837
• GCD of 803, 980, 58, 182
• GCD of 469, 397, 52, 755
• GCD of 706, 727, 43, 402
• GCD of 452, 693, 27, 681

Given numbers are 780, 382, 78, 981
The greatest common divisor of numbers 780, 382, 78, 981 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 780, 382, 78, 981 is 1.

1. What is the GCD of 780, 382, 78, 981?

GCD of given numbers 780, 382, 78, 981 is 1

2. How to calculate the greatest common divisor of 780, 382, 78, 981?

We can find the highest common divisor of 780, 382, 78, 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 780, 382, 78, 981 i.e 1.

3. How can I use the GCD of 780, 382, 78, 981Calculator?

Out the numbers 780, 382, 78, 981 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.