GCD of 648, 728, 909, 765 Calculator

Given Input numbers are 648, 728, 909, 765

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

Divisors of 648 :

The positive integer divisors of 648 that completely divides 648 are.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648

Divisors of 728 :

The positive integer divisors of 728 that completely divides 728 are.

1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728

Divisors of 909 :

The positive integer divisors of 909 that completely divides 909 are.

1, 3, 9, 101, 303, 909

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

GCD of numbers is the greatest common divisor

So, the GCD (648, 728, 909, 765) = 1.

Given numbers are 648, 728, 909, 765

The list of prime factors of all numbers are

Prime factors of 648 are 2 x 2 x 2 x 3 x 3 x 3 x 3

Prime factors of 728 are 2 x 2 x 2 x 7 x 13

Prime factors of 909 are 3 x 3 x 101

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

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

Given numbers are 648, 728, 909, 765

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

Apply this formula for all numbers.

Step1:

LCM(648, 728) = 58968

GCD(648, 728) = ( 648 x 728 ) / 58968

= 648 / 728

= 648

Step2:

LCM(8, 909) = 7272

GCD(8, 909) = ( 8 x 909 ) / 7272

= 8 / 909

= 8

Step3:

LCM(1, 765) = 765

GCD(1, 765) = ( 1 x 765 ) / 765

= 1 / 765

= 1

So, Greatest Common Divisor of 648, 728, 909, 765 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 189, 666, 729, 511
• GCD of 868, 997, 737, 629
• GCD of 916, 589, 170, 985
• GCD of 306, 676, 654, 319
• GCD of 715, 436, 709, 570

Given numbers are 648, 728, 909, 765
The greatest common divisor of numbers 648, 728, 909, 765 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 648, 728, 909, 765 is 1.

1. What is the GCD of 648, 728, 909, 765?

GCD of given numbers 648, 728, 909, 765 is 1

2. How to calculate the greatest common divisor of 648, 728, 909, 765?

We can find the highest common divisor of 648, 728, 909, 765 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 648, 728, 909, 765 i.e 1.

3. How can I use the GCD of 648, 728, 909, 765Calculator?

Out the numbers 648, 728, 909, 765 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.