GCD of 690, 388, 729, 731 Calculator

Given Input numbers are 690, 388, 729, 731

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

Divisors of 690 :

The positive integer divisors of 690 that completely divides 690 are.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

Divisors of 388 :

The positive integer divisors of 388 that completely divides 388 are.

1, 2, 4, 97, 194, 388

Divisors of 729 :

The positive integer divisors of 729 that completely divides 729 are.

1, 3, 9, 27, 81, 243, 729

Divisors of 731 :

The positive integer divisors of 731 that completely divides 731 are.

1, 17, 43, 731

GCD of numbers is the greatest common divisor

So, the GCD (690, 388, 729, 731) = 1.

Given numbers are 690, 388, 729, 731

The list of prime factors of all numbers are

Prime factors of 690 are 2 x 3 x 5 x 23

Prime factors of 388 are 2 x 2 x 97

Prime factors of 729 are 3 x 3 x 3 x 3 x 3 x 3

Prime factors of 731 are 17 x 43

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

Given numbers are 690, 388, 729, 731

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

Apply this formula for all numbers.

Step1:

LCM(690, 388) = 133860

GCD(690, 388) = ( 690 x 388 ) / 133860

= 690 / 388

= 690

Step2:

LCM(2, 729) = 1458

GCD(2, 729) = ( 2 x 729 ) / 1458

= 2 / 729

= 2

Step3:

LCM(1, 731) = 731

GCD(1, 731) = ( 1 x 731 ) / 731

= 1 / 731

= 1

So, Greatest Common Divisor of 690, 388, 729, 731 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 981, 198, 485, 828
• GCD of 658, 475, 150, 317
• GCD of 774, 689, 130, 795
• GCD of 850, 445, 319, 520
• GCD of 487, 176, 495, 603

Given numbers are 690, 388, 729, 731
The greatest common divisor of numbers 690, 388, 729, 731 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 388, 729, 731 is 1.

1. What is the GCD of 690, 388, 729, 731?

GCD of given numbers 690, 388, 729, 731 is 1

2. How to calculate the greatest common divisor of 690, 388, 729, 731?

We can find the highest common divisor of 690, 388, 729, 731 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 690, 388, 729, 731 i.e 1.

3. How can I use the GCD of 690, 388, 729, 731Calculator?

Out the numbers 690, 388, 729, 731 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.