GCD of 680, 920, 873, 643 Calculator

Given Input numbers are 680, 920, 873, 643

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

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

Divisors of 920 :

The positive integer divisors of 920 that completely divides 920 are.

1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920

Divisors of 873 :

The positive integer divisors of 873 that completely divides 873 are.

1, 3, 9, 97, 291, 873

Divisors of 643 :

The positive integer divisors of 643 that completely divides 643 are.

1, 643

GCD of numbers is the greatest common divisor

So, the GCD (680, 920, 873, 643) = 1.

Given numbers are 680, 920, 873, 643

The list of prime factors of all numbers are

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

Prime factors of 920 are 2 x 2 x 2 x 5 x 23

Prime factors of 873 are 3 x 3 x 97

Prime factors of 643 are 643

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

Given numbers are 680, 920, 873, 643

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

Apply this formula for all numbers.

Step1:

LCM(680, 920) = 15640

GCD(680, 920) = ( 680 x 920 ) / 15640

= 680 / 920

= 680

Step2:

LCM(40, 873) = 34920

GCD(40, 873) = ( 40 x 873 ) / 34920

= 40 / 873

= 40

Step3:

LCM(1, 643) = 643

GCD(1, 643) = ( 1 x 643 ) / 643

= 1 / 643

= 1

So, Greatest Common Divisor of 680, 920, 873, 643 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 521, 562, 395, 898
• GCD of 842, 261, 913, 236
• GCD of 767, 258, 852, 582
• GCD of 618, 944, 873, 987
• GCD of 285, 501, 840, 299

Given numbers are 680, 920, 873, 643
The greatest common divisor of numbers 680, 920, 873, 643 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 680, 920, 873, 643 is 1.

1. What is the GCD of 680, 920, 873, 643?

GCD of given numbers 680, 920, 873, 643 is 1

2. How to calculate the greatest common divisor of 680, 920, 873, 643?

We can find the highest common divisor of 680, 920, 873, 643 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 680, 920, 873, 643 i.e 1.

3. How can I use the GCD of 680, 920, 873, 643Calculator?

Out the numbers 680, 920, 873, 643 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.