GCD of 690, 691, 720, 396 Calculator

Given Input numbers are 690, 691, 720, 396

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 691 :

The positive integer divisors of 691 that completely divides 691 are.

1, 691

Divisors of 720 :

The positive integer divisors of 720 that completely divides 720 are.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

Divisors of 396 :

The positive integer divisors of 396 that completely divides 396 are.

1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396

GCD of numbers is the greatest common divisor

So, the GCD (690, 691, 720, 396) = 1.

Given numbers are 690, 691, 720, 396

The list of prime factors of all numbers are

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

Prime factors of 691 are 691

Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5

Prime factors of 396 are 2 x 2 x 3 x 3 x 11

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

Given numbers are 690, 691, 720, 396

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

Apply this formula for all numbers.

Step1:

LCM(690, 691) = 476790

GCD(690, 691) = ( 690 x 691 ) / 476790

= 690 / 691

= 690

Step2:

LCM(1, 720) = 720

GCD(1, 720) = ( 1 x 720 ) / 720

= 1 / 720

= 1

Step3:

LCM(1, 396) = 396

GCD(1, 396) = ( 1 x 396 ) / 396

= 1 / 396

= 1

So, Greatest Common Divisor of 690, 691, 720, 396 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 667, 164, 733, 981
• GCD of 242, 811, 662, 210
• GCD of 165, 476, 226, 392
• GCD of 598, 827, 364, 348
• GCD of 228, 330, 988, 450

Given numbers are 690, 691, 720, 396
The greatest common divisor of numbers 690, 691, 720, 396 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 691, 720, 396 is 1.

1. What is the GCD of 690, 691, 720, 396?

GCD of given numbers 690, 691, 720, 396 is 1

2. How to calculate the greatest common divisor of 690, 691, 720, 396?

We can find the highest common divisor of 690, 691, 720, 396 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, 691, 720, 396 i.e 1.

3. How can I use the GCD of 690, 691, 720, 396Calculator?

Out the numbers 690, 691, 720, 396 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.