GCD of 845, 798, 780, 680 Calculator

Given Input numbers are 845, 798, 780, 680

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

Divisors of 845 :

The positive integer divisors of 845 that completely divides 845 are.

1, 5, 13, 65, 169, 845

Divisors of 798 :

The positive integer divisors of 798 that completely divides 798 are.

1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798

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 680 :

The positive integer divisors of 680 that completely divides 680 are.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

GCD of numbers is the greatest common divisor

So, the GCD (845, 798, 780, 680) = 1.

Given numbers are 845, 798, 780, 680

The list of prime factors of all numbers are

Prime factors of 845 are 5 x 13 x 13

Prime factors of 798 are 2 x 3 x 7 x 19

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

Prime factors of 680 are 2 x 2 x 2 x 5 x 17

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

Given numbers are 845, 798, 780, 680

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

Apply this formula for all numbers.

Step1:

LCM(845, 798) = 674310

GCD(845, 798) = ( 845 x 798 ) / 674310

= 845 / 798

= 845

Step2:

LCM(1, 780) = 780

GCD(1, 780) = ( 1 x 780 ) / 780

= 1 / 780

= 1

Step3:

LCM(1, 680) = 680

GCD(1, 680) = ( 1 x 680 ) / 680

= 1 / 680

= 1

So, Greatest Common Divisor of 845, 798, 780, 680 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 973, 943, 602, 173
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• GCD of 586, 703, 495, 283

Given numbers are 845, 798, 780, 680
The greatest common divisor of numbers 845, 798, 780, 680 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 845, 798, 780, 680 is 1.

1. What is the GCD of 845, 798, 780, 680?

GCD of given numbers 845, 798, 780, 680 is 1

2. How to calculate the greatest common divisor of 845, 798, 780, 680?

We can find the highest common divisor of 845, 798, 780, 680 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 845, 798, 780, 680 i.e 1.

3. How can I use the GCD of 845, 798, 780, 680Calculator?

Out the numbers 845, 798, 780, 680 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.