GCD of 427, 255, 121, 780 Calculator

Given Input numbers are 427, 255, 121, 780

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

Divisors of 427 :

The positive integer divisors of 427 that completely divides 427 are.

1, 7, 61, 427

Divisors of 255 :

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

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

Divisors of 121 :

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

1, 11, 121

Divisors of 780 :

The positive integer divisors of 780 that completely divides 780 are.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

GCD of numbers is the greatest common divisor

So, the GCD (427, 255, 121, 780) = 1.

Given numbers are 427, 255, 121, 780

The list of prime factors of all numbers are

Prime factors of 427 are 7 x 61

Prime factors of 255 are 3 x 5 x 17

Prime factors of 121 are 11 x 11

Prime factors of 780 are 2 x 2 x 3 x 5 x 13

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

Given numbers are 427, 255, 121, 780

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

Apply this formula for all numbers.

Step1:

LCM(427, 255) = 108885

GCD(427, 255) = ( 427 x 255 ) / 108885

= 427 / 255

= 427

Step2:

LCM(1, 121) = 121

GCD(1, 121) = ( 1 x 121 ) / 121

= 1 / 121

= 1

Step3:

LCM(1, 780) = 780

GCD(1, 780) = ( 1 x 780 ) / 780

= 1 / 780

= 1

So, Greatest Common Divisor of 427, 255, 121, 780 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 534, 148, 526, 535
• GCD of 395, 150, 463, 273
• GCD of 436, 798, 403, 683
• GCD of 334, 112, 983, 981
• GCD of 955, 757, 992, 827

Given numbers are 427, 255, 121, 780
The greatest common divisor of numbers 427, 255, 121, 780 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 427, 255, 121, 780 is 1.

1. What is the GCD of 427, 255, 121, 780?

GCD of given numbers 427, 255, 121, 780 is 1

2. How to calculate the greatest common divisor of 427, 255, 121, 780?

We can find the highest common divisor of 427, 255, 121, 780 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 427, 255, 121, 780 i.e 1.

3. How can I use the GCD of 427, 255, 121, 780Calculator?

Out the numbers 427, 255, 121, 780 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.