GCD of 855, 485, 918, 642 Calculator

Given Input numbers are 855, 485, 918, 642

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

Divisors of 855 :

The positive integer divisors of 855 that completely divides 855 are.

1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855

Divisors of 485 :

The positive integer divisors of 485 that completely divides 485 are.

1, 5, 97, 485

Divisors of 918 :

The positive integer divisors of 918 that completely divides 918 are.

1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918

Divisors of 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

GCD of numbers is the greatest common divisor

So, the GCD (855, 485, 918, 642) = 1.

Given numbers are 855, 485, 918, 642

The list of prime factors of all numbers are

Prime factors of 855 are 3 x 3 x 5 x 19

Prime factors of 485 are 5 x 97

Prime factors of 918 are 2 x 3 x 3 x 3 x 17

Prime factors of 642 are 2 x 3 x 107

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

Given numbers are 855, 485, 918, 642

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

Apply this formula for all numbers.

Step1:

LCM(855, 485) = 82935

GCD(855, 485) = ( 855 x 485 ) / 82935

= 855 / 485

= 855

Step2:

LCM(5, 918) = 4590

GCD(5, 918) = ( 5 x 918 ) / 4590

= 5 / 918

= 5

Step3:

LCM(1, 642) = 642

GCD(1, 642) = ( 1 x 642 ) / 642

= 1 / 642

= 1

So, Greatest Common Divisor of 855, 485, 918, 642 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 886, 168, 121, 488
• GCD of 458, 458, 449, 195
• GCD of 702, 648, 916, 741
• GCD of 420, 157, 715, 670
• GCD of 364, 637, 983, 782

Given numbers are 855, 485, 918, 642
The greatest common divisor of numbers 855, 485, 918, 642 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 855, 485, 918, 642 is 1.

1. What is the GCD of 855, 485, 918, 642?

GCD of given numbers 855, 485, 918, 642 is 1

2. How to calculate the greatest common divisor of 855, 485, 918, 642?

We can find the highest common divisor of 855, 485, 918, 642 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 855, 485, 918, 642 i.e 1.

3. How can I use the GCD of 855, 485, 918, 642Calculator?

Out the numbers 855, 485, 918, 642 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.