GCD of 691, 687, 130, 858 Calculator

Given Input numbers are 691, 687, 130, 858

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

Divisors of 691 :

The positive integer divisors of 691 that completely divides 691 are.

1, 691

Divisors of 687 :

The positive integer divisors of 687 that completely divides 687 are.

1, 3, 229, 687

Divisors of 130 :

The positive integer divisors of 130 that completely divides 130 are.

1, 2, 5, 10, 13, 26, 65, 130

Divisors of 858 :

The positive integer divisors of 858 that completely divides 858 are.

1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858

GCD of numbers is the greatest common divisor

So, the GCD (691, 687, 130, 858) = 1.

Given numbers are 691, 687, 130, 858

The list of prime factors of all numbers are

Prime factors of 691 are 691

Prime factors of 687 are 3 x 229

Prime factors of 130 are 2 x 5 x 13

Prime factors of 858 are 2 x 3 x 11 x 13

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

Given numbers are 691, 687, 130, 858

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

Apply this formula for all numbers.

Step1:

LCM(691, 687) = 474717

GCD(691, 687) = ( 691 x 687 ) / 474717

= 691 / 687

= 691

Step2:

LCM(1, 130) = 130

GCD(1, 130) = ( 1 x 130 ) / 130

= 1 / 130

= 1

Step3:

LCM(1, 858) = 858

GCD(1, 858) = ( 1 x 858 ) / 858

= 1 / 858

= 1

So, Greatest Common Divisor of 691, 687, 130, 858 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 958, 903, 280, 541
• GCD of 120, 159, 292, 879
• GCD of 560, 117, 241, 755
• GCD of 814, 972, 802, 571
• GCD of 904, 805, 635, 483

Given numbers are 691, 687, 130, 858
The greatest common divisor of numbers 691, 687, 130, 858 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 691, 687, 130, 858 is 1.

1. What is the GCD of 691, 687, 130, 858?

GCD of given numbers 691, 687, 130, 858 is 1

2. How to calculate the greatest common divisor of 691, 687, 130, 858?

We can find the highest common divisor of 691, 687, 130, 858 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 691, 687, 130, 858 i.e 1.

3. How can I use the GCD of 691, 687, 130, 858Calculator?

Out the numbers 691, 687, 130, 858 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.