GCD of 634, 978, 756, 680 Calculator

Given Input numbers are 634, 978, 756, 680

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

Divisors of 634 :

The positive integer divisors of 634 that completely divides 634 are.

1, 2, 317, 634

Divisors of 978 :

The positive integer divisors of 978 that completely divides 978 are.

1, 2, 3, 6, 163, 326, 489, 978

Divisors of 756 :

The positive integer divisors of 756 that completely divides 756 are.

1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756

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 (634, 978, 756, 680) = 2.

Given numbers are 634, 978, 756, 680

The list of prime factors of all numbers are

Prime factors of 634 are 2 x 317

Prime factors of 978 are 2 x 3 x 163

Prime factors of 756 are 2 x 2 x 3 x 3 x 3 x 7

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

The highest common occurrence is 2¹

Therefore, GCD of 634, 978, 756, 680 is 2.

Given numbers are 634, 978, 756, 680

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

Apply this formula for all numbers.

Step1:

LCM(634, 978) = 310026

GCD(634, 978) = ( 634 x 978 ) / 310026

= 634 / 978

= 634

Step2:

LCM(2, 756) = 756

GCD(2, 756) = ( 2 x 756 ) / 756

= 2 / 756

= 2

Step3:

LCM(2, 680) = 680

GCD(2, 680) = ( 2 x 680 ) / 680

= 2 / 680

= 2

So, Greatest Common Divisor of 634, 978, 756, 680 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 770, 614, 670, 235
• GCD of 912, 280, 702, 570
• GCD of 950, 512, 670, 800
• GCD of 451, 316, 370, 959
• GCD of 550, 351, 130, 719

Given numbers are 634, 978, 756, 680
The greatest common divisor of numbers 634, 978, 756, 680 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 634, 978, 756, 680 is 2.

1. What is the GCD of 634, 978, 756, 680?

GCD of given numbers 634, 978, 756, 680 is 2

2. How to calculate the greatest common divisor of 634, 978, 756, 680?

We can find the highest common divisor of 634, 978, 756, 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 634, 978, 756, 680 i.e 2.

3. How can I use the GCD of 634, 978, 756, 680Calculator?

Out the numbers 634, 978, 756, 680 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.