GCD of 255, 645, 27, 651 Calculator

Given Input numbers are 255, 645, 27, 651

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

Divisors of 255 :

The positive integer divisors of 255 that completely divides 255 are.

1, 3, 5, 15, 17, 51, 85, 255

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 27 :

The positive integer divisors of 27 that completely divides 27 are.

1, 3, 9, 27

Divisors of 651 :

The positive integer divisors of 651 that completely divides 651 are.

1, 3, 7, 21, 31, 93, 217, 651

GCD of numbers is the greatest common divisor

So, the GCD (255, 645, 27, 651) = 3.

Given numbers are 255, 645, 27, 651

The list of prime factors of all numbers are

Prime factors of 255 are 3 x 5 x 17

Prime factors of 645 are 3 x 5 x 43

Prime factors of 27 are 3 x 3 x 3

Prime factors of 651 are 3 x 7 x 31

The highest common occurrence is 3¹

Therefore, GCD of 255, 645, 27, 651 is 3.

Given numbers are 255, 645, 27, 651

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

Apply this formula for all numbers.

Step1:

LCM(255, 645) = 10965

GCD(255, 645) = ( 255 x 645 ) / 10965

= 255 / 645

= 255

Step2:

LCM(15, 27) = 135

GCD(15, 27) = ( 15 x 27 ) / 135

= 15 / 27

= 15

Step3:

LCM(3, 651) = 651

GCD(3, 651) = ( 3 x 651 ) / 651

= 3 / 651

= 3

So, Greatest Common Divisor of 255, 645, 27, 651 is 3

Here are some samples of GCD of Numbers calculations.

• GCD of 157, 468, 28, 344
• GCD of 687, 598, 51, 936
• GCD of 308, 614, 56, 636
• GCD of 480, 201, 52, 390
• GCD of 297, 376, 49, 678

Given numbers are 255, 645, 27, 651
The greatest common divisor of numbers 255, 645, 27, 651 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 255, 645, 27, 651 is 3.

1. What is the GCD of 255, 645, 27, 651?

GCD of given numbers 255, 645, 27, 651 is 3

2. How to calculate the greatest common divisor of 255, 645, 27, 651?

We can find the highest common divisor of 255, 645, 27, 651 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 255, 645, 27, 651 i.e 3.

3. How can I use the GCD of 255, 645, 27, 651Calculator?

Out the numbers 255, 645, 27, 651 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.