GCD of 689, 780, 47, 963 Calculator

Given Input numbers are 689, 780, 47, 963

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

Divisors of 689 :

The positive integer divisors of 689 that completely divides 689 are.

1, 13, 53, 689

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 47 :

The positive integer divisors of 47 that completely divides 47 are.

1, 47

Divisors of 963 :

The positive integer divisors of 963 that completely divides 963 are.

1, 3, 9, 107, 321, 963

GCD of numbers is the greatest common divisor

So, the GCD (689, 780, 47, 963) = 1.

Given numbers are 689, 780, 47, 963

The list of prime factors of all numbers are

Prime factors of 689 are 13 x 53

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

Prime factors of 47 are 47

Prime factors of 963 are 3 x 3 x 107

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

Given numbers are 689, 780, 47, 963

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

Apply this formula for all numbers.

Step1:

LCM(689, 780) = 41340

GCD(689, 780) = ( 689 x 780 ) / 41340

= 689 / 780

= 689

Step2:

LCM(13, 47) = 611

GCD(13, 47) = ( 13 x 47 ) / 611

= 13 / 47

= 13

Step3:

LCM(1, 963) = 963

GCD(1, 963) = ( 1 x 963 ) / 963

= 1 / 963

= 1

So, Greatest Common Divisor of 689, 780, 47, 963 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 243, 208, 25, 726
• GCD of 592, 155, 57, 595
• GCD of 741, 421, 46, 868
• GCD of 128, 316, 56, 130
• GCD of 527, 112, 15, 422

Given numbers are 689, 780, 47, 963
The greatest common divisor of numbers 689, 780, 47, 963 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 689, 780, 47, 963 is 1.

1. What is the GCD of 689, 780, 47, 963?

GCD of given numbers 689, 780, 47, 963 is 1

2. How to calculate the greatest common divisor of 689, 780, 47, 963?

We can find the highest common divisor of 689, 780, 47, 963 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 689, 780, 47, 963 i.e 1.

3. How can I use the GCD of 689, 780, 47, 963Calculator?

Out the numbers 689, 780, 47, 963 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.