GCD of 765, 781, 644, 108 Calculator

Given Input numbers are 765, 781, 644, 108

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

Divisors of 765 :

The positive integer divisors of 765 that completely divides 765 are.

1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765

Divisors of 781 :

The positive integer divisors of 781 that completely divides 781 are.

1, 11, 71, 781

Divisors of 644 :

The positive integer divisors of 644 that completely divides 644 are.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 108 :

The positive integer divisors of 108 that completely divides 108 are.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108

GCD of numbers is the greatest common divisor

So, the GCD (765, 781, 644, 108) = 1.

Given numbers are 765, 781, 644, 108

The list of prime factors of all numbers are

Prime factors of 765 are 3 x 3 x 5 x 17

Prime factors of 781 are 11 x 71

Prime factors of 644 are 2 x 2 x 7 x 23

Prime factors of 108 are 2 x 2 x 3 x 3 x 3

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

Given numbers are 765, 781, 644, 108

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

Apply this formula for all numbers.

Step1:

LCM(765, 781) = 597465

GCD(765, 781) = ( 765 x 781 ) / 597465

= 765 / 781

= 765

Step2:

LCM(1, 644) = 644

GCD(1, 644) = ( 1 x 644 ) / 644

= 1 / 644

= 1

Step3:

LCM(1, 108) = 108

GCD(1, 108) = ( 1 x 108 ) / 108

= 1 / 108

= 1

So, Greatest Common Divisor of 765, 781, 644, 108 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 480, 613, 414, 365
• GCD of 729, 200, 206, 314
• GCD of 513, 925, 278, 795
• GCD of 444, 386, 889, 729
• GCD of 345, 340, 770, 841

Given numbers are 765, 781, 644, 108
The greatest common divisor of numbers 765, 781, 644, 108 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 765, 781, 644, 108 is 1.

1. What is the GCD of 765, 781, 644, 108?

GCD of given numbers 765, 781, 644, 108 is 1

2. How to calculate the greatest common divisor of 765, 781, 644, 108?

We can find the highest common divisor of 765, 781, 644, 108 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 765, 781, 644, 108 i.e 1.

3. How can I use the GCD of 765, 781, 644, 108Calculator?

Out the numbers 765, 781, 644, 108 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.