GCD of 780, 645, 108, 253 Calculator

Given Input numbers are 780, 645, 108, 253

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

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

Divisors of 645 :

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

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

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

Divisors of 253 :

The positive integer divisors of 253 that completely divides 253 are.

1, 11, 23, 253

GCD of numbers is the greatest common divisor

So, the GCD (780, 645, 108, 253) = 1.

Given numbers are 780, 645, 108, 253

The list of prime factors of all numbers are

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

Prime factors of 645 are 3 x 5 x 43

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

Prime factors of 253 are 11 x 23

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

Given numbers are 780, 645, 108, 253

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

Apply this formula for all numbers.

Step1:

LCM(780, 645) = 33540

GCD(780, 645) = ( 780 x 645 ) / 33540

= 780 / 645

= 780

Step2:

LCM(15, 108) = 540

GCD(15, 108) = ( 15 x 108 ) / 540

= 15 / 108

= 15

Step3:

LCM(3, 253) = 759

GCD(3, 253) = ( 3 x 253 ) / 759

= 3 / 253

= 3

So, Greatest Common Divisor of 780, 645, 108, 253 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 840, 759, 345, 153
• GCD of 855, 691, 914, 848
• GCD of 702, 459, 463, 472
• GCD of 666, 628, 180, 364
• GCD of 996, 751, 427, 924

Given numbers are 780, 645, 108, 253
The greatest common divisor of numbers 780, 645, 108, 253 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 780, 645, 108, 253 is 1.

1. What is the GCD of 780, 645, 108, 253?

GCD of given numbers 780, 645, 108, 253 is 1

2. How to calculate the greatest common divisor of 780, 645, 108, 253?

We can find the highest common divisor of 780, 645, 108, 253 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 780, 645, 108, 253 i.e 1.

3. How can I use the GCD of 780, 645, 108, 253Calculator?

Out the numbers 780, 645, 108, 253 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.