GCD of 685, 630, 872, 656 Calculator

Given Input numbers are 685, 630, 872, 656

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

Divisors of 685 :

The positive integer divisors of 685 that completely divides 685 are.

1, 5, 137, 685

Divisors of 630 :

The positive integer divisors of 630 that completely divides 630 are.

1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630

Divisors of 872 :

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

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

Divisors of 656 :

The positive integer divisors of 656 that completely divides 656 are.

1, 2, 4, 8, 16, 41, 82, 164, 328, 656

GCD of numbers is the greatest common divisor

So, the GCD (685, 630, 872, 656) = 1.

Given numbers are 685, 630, 872, 656

The list of prime factors of all numbers are

Prime factors of 685 are 5 x 137

Prime factors of 630 are 2 x 3 x 3 x 5 x 7

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

Prime factors of 656 are 2 x 2 x 2 x 2 x 41

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

Given numbers are 685, 630, 872, 656

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

Apply this formula for all numbers.

Step1:

LCM(685, 630) = 86310

GCD(685, 630) = ( 685 x 630 ) / 86310

= 685 / 630

= 685

Step2:

LCM(5, 872) = 4360

GCD(5, 872) = ( 5 x 872 ) / 4360

= 5 / 872

= 5

Step3:

LCM(1, 656) = 656

GCD(1, 656) = ( 1 x 656 ) / 656

= 1 / 656

= 1

So, Greatest Common Divisor of 685, 630, 872, 656 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 347, 312, 323, 134
• GCD of 505, 122, 202, 823
• GCD of 176, 678, 406, 959
• GCD of 490, 970, 351, 152
• GCD of 687, 929, 265, 718

Given numbers are 685, 630, 872, 656
The greatest common divisor of numbers 685, 630, 872, 656 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 685, 630, 872, 656 is 1.

1. What is the GCD of 685, 630, 872, 656?

GCD of given numbers 685, 630, 872, 656 is 1

2. How to calculate the greatest common divisor of 685, 630, 872, 656?

We can find the highest common divisor of 685, 630, 872, 656 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 685, 630, 872, 656 i.e 1.

3. How can I use the GCD of 685, 630, 872, 656Calculator?

Out the numbers 685, 630, 872, 656 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.