GCD of 690, 651, 805, 864 Calculator

Given Input numbers are 690, 651, 805, 864

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 651 :

The positive integer divisors of 651 that completely divides 651 are.

1, 3, 7, 21, 31, 93, 217, 651

Divisors of 805 :

The positive integer divisors of 805 that completely divides 805 are.

1, 5, 7, 23, 35, 115, 161, 805

Divisors of 864 :

The positive integer divisors of 864 that completely divides 864 are.

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 432, 864

GCD of numbers is the greatest common divisor

So, the GCD (690, 651, 805, 864) = 1.

Given numbers are 690, 651, 805, 864

The list of prime factors of all numbers are

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

Prime factors of 651 are 3 x 7 x 31

Prime factors of 805 are 5 x 7 x 23

Prime factors of 864 are 2 x 2 x 2 x 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 690, 651, 805, 864

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

Apply this formula for all numbers.

Step1:

LCM(690, 651) = 149730

GCD(690, 651) = ( 690 x 651 ) / 149730

= 690 / 651

= 690

Step2:

LCM(3, 805) = 2415

GCD(3, 805) = ( 3 x 805 ) / 2415

= 3 / 805

= 3

Step3:

LCM(1, 864) = 864

GCD(1, 864) = ( 1 x 864 ) / 864

= 1 / 864

= 1

So, Greatest Common Divisor of 690, 651, 805, 864 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 558, 832, 576, 956
• GCD of 329, 886, 971, 315
• GCD of 480, 255, 251, 641
• GCD of 234, 327, 446, 225
• GCD of 210, 497, 684, 679

Given numbers are 690, 651, 805, 864
The greatest common divisor of numbers 690, 651, 805, 864 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 651, 805, 864 is 1.

1. What is the GCD of 690, 651, 805, 864?

GCD of given numbers 690, 651, 805, 864 is 1

2. How to calculate the greatest common divisor of 690, 651, 805, 864?

We can find the highest common divisor of 690, 651, 805, 864 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, 651, 805, 864 i.e 1.

3. How can I use the GCD of 690, 651, 805, 864Calculator?

Out the numbers 690, 651, 805, 864 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.