GCD of 685, 861, 920 Calculator

Given Input numbers are 685, 861, 920

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 861 :

The positive integer divisors of 861 that completely divides 861 are.

1, 3, 7, 21, 41, 123, 287, 861

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

GCD of numbers is the greatest common divisor

So, the GCD (685, 861, 920) = 1.

Given numbers are 685, 861, 920

The list of prime factors of all numbers are

Prime factors of 685 are 5 x 137

Prime factors of 861 are 3 x 7 x 41

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

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

Given numbers are 685, 861, 920

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

Apply this formula for all numbers.

Step1:

LCM(685, 861) = 589785

GCD(685, 861) = ( 685 x 861 ) / 589785

= 685 / 861

= 685

Step2:

LCM(1, 920) = 920

GCD(1, 920) = ( 1 x 920 ) / 920

= 1 / 920

= 1

So, Greatest Common Divisor of 685, 861, 920 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 837, 375, 157
• GCD of 847, 544, 751
• GCD of 786, 428, 494
• GCD of 648, 661, 467
• GCD of 607, 941, 469

Given numbers are 685, 861, 920
The greatest common divisor of numbers 685, 861, 920 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 685, 861, 920 is 1.

1. What is the GCD of 685, 861, 920?

GCD of given numbers 685, 861, 920 is 1

2. How to calculate the greatest common divisor of 685, 861, 920?

We can find the highest common divisor of 685, 861, 920 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, 861, 920 i.e 1.

3. How can I use the GCD of 685, 861, 920Calculator?

Out the numbers 685, 861, 920 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.