GCD of 686, 840, 121, 939 Calculator

Given Input numbers are 686, 840, 121, 939

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

Divisors of 686 :

The positive integer divisors of 686 that completely divides 686 are.

1, 2, 7, 14, 49, 98, 343, 686

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 121 :

The positive integer divisors of 121 that completely divides 121 are.

1, 11, 121

Divisors of 939 :

The positive integer divisors of 939 that completely divides 939 are.

1, 3, 313, 939

GCD of numbers is the greatest common divisor

So, the GCD (686, 840, 121, 939) = 1.

Given numbers are 686, 840, 121, 939

The list of prime factors of all numbers are

Prime factors of 686 are 2 x 7 x 7 x 7

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

Prime factors of 121 are 11 x 11

Prime factors of 939 are 3 x 313

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

Given numbers are 686, 840, 121, 939

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

Apply this formula for all numbers.

Step1:

LCM(686, 840) = 41160

GCD(686, 840) = ( 686 x 840 ) / 41160

= 686 / 840

= 686

Step2:

LCM(14, 121) = 1694

GCD(14, 121) = ( 14 x 121 ) / 1694

= 14 / 121

= 14

Step3:

LCM(1, 939) = 939

GCD(1, 939) = ( 1 x 939 ) / 939

= 1 / 939

= 1

So, Greatest Common Divisor of 686, 840, 121, 939 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 275, 581, 990, 250
• GCD of 861, 289, 263, 846
• GCD of 325, 900, 725, 130
• GCD of 839, 893, 202, 597
• GCD of 900, 872, 588, 468

Given numbers are 686, 840, 121, 939
The greatest common divisor of numbers 686, 840, 121, 939 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 686, 840, 121, 939 is 1.

1. What is the GCD of 686, 840, 121, 939?

GCD of given numbers 686, 840, 121, 939 is 1

2. How to calculate the greatest common divisor of 686, 840, 121, 939?

We can find the highest common divisor of 686, 840, 121, 939 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 686, 840, 121, 939 i.e 1.

3. How can I use the GCD of 686, 840, 121, 939Calculator?

Out the numbers 686, 840, 121, 939 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.