GCD of 685, 780, 359, 988 Calculator

Given Input numbers are 685, 780, 359, 988

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 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 359 :

The positive integer divisors of 359 that completely divides 359 are.

1, 359

Divisors of 988 :

The positive integer divisors of 988 that completely divides 988 are.

1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988

GCD of numbers is the greatest common divisor

So, the GCD (685, 780, 359, 988) = 1.

Given numbers are 685, 780, 359, 988

The list of prime factors of all numbers are

Prime factors of 685 are 5 x 137

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

Prime factors of 359 are 359

Prime factors of 988 are 2 x 2 x 13 x 19

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

Given numbers are 685, 780, 359, 988

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

Apply this formula for all numbers.

Step1:

LCM(685, 780) = 106860

GCD(685, 780) = ( 685 x 780 ) / 106860

= 685 / 780

= 685

Step2:

LCM(5, 359) = 1795

GCD(5, 359) = ( 5 x 359 ) / 1795

= 5 / 359

= 5

Step3:

LCM(1, 988) = 988

GCD(1, 988) = ( 1 x 988 ) / 988

= 1 / 988

= 1

So, Greatest Common Divisor of 685, 780, 359, 988 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 353, 127, 487, 769
• GCD of 514, 172, 355, 870
• GCD of 280, 749, 783, 887
• GCD of 187, 926, 718, 754
• GCD of 376, 419, 260, 272

Given numbers are 685, 780, 359, 988
The greatest common divisor of numbers 685, 780, 359, 988 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 685, 780, 359, 988 is 1.

1. What is the GCD of 685, 780, 359, 988?

GCD of given numbers 685, 780, 359, 988 is 1

2. How to calculate the greatest common divisor of 685, 780, 359, 988?

We can find the highest common divisor of 685, 780, 359, 988 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, 780, 359, 988 i.e 1.

3. How can I use the GCD of 685, 780, 359, 988Calculator?

Out the numbers 685, 780, 359, 988 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.