GCD of 643, 872, 103, 680 Calculator

Given Input numbers are 643, 872, 103, 680

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

Divisors of 643 :

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

1, 643

Divisors of 872 :

The positive integer divisors of 872 that completely divides 872 are.

1, 2, 4, 8, 109, 218, 436, 872

Divisors of 103 :

The positive integer divisors of 103 that completely divides 103 are.

1, 103

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 (643, 872, 103, 680) = 1.

Given numbers are 643, 872, 103, 680

The list of prime factors of all numbers are

Prime factors of 643 are 643

Prime factors of 872 are 2 x 2 x 2 x 109

Prime factors of 103 are 103

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 643, 872, 103, 680

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

Apply this formula for all numbers.

Step1:

LCM(643, 872) = 560696

GCD(643, 872) = ( 643 x 872 ) / 560696

= 643 / 872

= 643

Step2:

LCM(1, 103) = 103

GCD(1, 103) = ( 1 x 103 ) / 103

= 1 / 103

= 1

Step3:

LCM(1, 680) = 680

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

= 1 / 680

= 1

So, Greatest Common Divisor of 643, 872, 103, 680 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 464, 189, 344, 352
• GCD of 538, 489, 574, 300
• GCD of 304, 153, 127, 264
• GCD of 873, 679, 896, 199
• GCD of 627, 374, 539, 360

Given numbers are 643, 872, 103, 680
The greatest common divisor of numbers 643, 872, 103, 680 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 643, 872, 103, 680 is 1.

1. What is the GCD of 643, 872, 103, 680?

GCD of given numbers 643, 872, 103, 680 is 1

2. How to calculate the greatest common divisor of 643, 872, 103, 680?

We can find the highest common divisor of 643, 872, 103, 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 643, 872, 103, 680 i.e 1.

3. How can I use the GCD of 643, 872, 103, 680Calculator?

Out the numbers 643, 872, 103, 680 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.