GCD of 855, 865, 172, 440 Calculator

Given Input numbers are 855, 865, 172, 440

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 865 :

The positive integer divisors of 865 that completely divides 865 are.

1, 5, 173, 865

Divisors of 172 :

The positive integer divisors of 172 that completely divides 172 are.

1, 2, 4, 43, 86, 172

Divisors of 440 :

The positive integer divisors of 440 that completely divides 440 are.

1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440

GCD of numbers is the greatest common divisor

So, the GCD (855, 865, 172, 440) = 1.

Given numbers are 855, 865, 172, 440

The list of prime factors of all numbers are

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

Prime factors of 865 are 5 x 173

Prime factors of 172 are 2 x 2 x 43

Prime factors of 440 are 2 x 2 x 2 x 5 x 11

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

Given numbers are 855, 865, 172, 440

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

Apply this formula for all numbers.

Step1:

LCM(855, 865) = 147915

GCD(855, 865) = ( 855 x 865 ) / 147915

= 855 / 865

= 855

Step2:

LCM(5, 172) = 860

GCD(5, 172) = ( 5 x 172 ) / 860

= 5 / 172

= 5

Step3:

LCM(1, 440) = 440

GCD(1, 440) = ( 1 x 440 ) / 440

= 1 / 440

= 1

So, Greatest Common Divisor of 855, 865, 172, 440 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 721, 465, 933, 134
• GCD of 909, 650, 680, 991
• GCD of 297, 381, 537, 256
• GCD of 165, 377, 968, 192
• GCD of 697, 104, 221, 116

Given numbers are 855, 865, 172, 440
The greatest common divisor of numbers 855, 865, 172, 440 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 855, 865, 172, 440 is 1.

1. What is the GCD of 855, 865, 172, 440?

GCD of given numbers 855, 865, 172, 440 is 1

2. How to calculate the greatest common divisor of 855, 865, 172, 440?

We can find the highest common divisor of 855, 865, 172, 440 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, 865, 172, 440 i.e 1.

3. How can I use the GCD of 855, 865, 172, 440Calculator?

Out the numbers 855, 865, 172, 440 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.