GCD of 840, 479, 680, 861 Calculator

Given Input numbers are 840, 479, 680, 861

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

Divisors of 840 :

The positive integer divisors of 840 that completely divides 840 are.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

Divisors of 479 :

The positive integer divisors of 479 that completely divides 479 are.

1, 479

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

Divisors of 861 :

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

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

GCD of numbers is the greatest common divisor

So, the GCD (840, 479, 680, 861) = 1.

Given numbers are 840, 479, 680, 861

The list of prime factors of all numbers are

Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7

Prime factors of 479 are 479

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

Prime factors of 861 are 3 x 7 x 41

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

Given numbers are 840, 479, 680, 861

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

Apply this formula for all numbers.

Step1:

LCM(840, 479) = 402360

GCD(840, 479) = ( 840 x 479 ) / 402360

= 840 / 479

= 840

Step2:

LCM(1, 680) = 680

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

= 1 / 680

= 1

Step3:

LCM(1, 861) = 861

GCD(1, 861) = ( 1 x 861 ) / 861

= 1 / 861

= 1

So, Greatest Common Divisor of 840, 479, 680, 861 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 646, 652, 689, 218
• GCD of 137, 381, 626, 814
• GCD of 445, 129, 826, 795
• GCD of 727, 253, 755, 648
• GCD of 875, 291, 296, 613

Given numbers are 840, 479, 680, 861
The greatest common divisor of numbers 840, 479, 680, 861 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 840, 479, 680, 861 is 1.

1. What is the GCD of 840, 479, 680, 861?

GCD of given numbers 840, 479, 680, 861 is 1

2. How to calculate the greatest common divisor of 840, 479, 680, 861?

We can find the highest common divisor of 840, 479, 680, 861 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 840, 479, 680, 861 i.e 1.

3. How can I use the GCD of 840, 479, 680, 861Calculator?

Out the numbers 840, 479, 680, 861 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.