GCD of 687, 690, 959, 765 Calculator

Given Input numbers are 687, 690, 959, 765

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

Divisors of 687 :

The positive integer divisors of 687 that completely divides 687 are.

1, 3, 229, 687

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 959 :

The positive integer divisors of 959 that completely divides 959 are.

1, 7, 137, 959

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 (687, 690, 959, 765) = 1.

Given numbers are 687, 690, 959, 765

The list of prime factors of all numbers are

Prime factors of 687 are 3 x 229

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

Prime factors of 959 are 7 x 137

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 687, 690, 959, 765

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

Apply this formula for all numbers.

Step1:

LCM(687, 690) = 158010

GCD(687, 690) = ( 687 x 690 ) / 158010

= 687 / 690

= 687

Step2:

LCM(3, 959) = 2877

GCD(3, 959) = ( 3 x 959 ) / 2877

= 3 / 959

= 3

Step3:

LCM(1, 765) = 765

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

= 1 / 765

= 1

So, Greatest Common Divisor of 687, 690, 959, 765 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 824, 737, 327, 515
• GCD of 354, 511, 854, 478
• GCD of 340, 398, 374, 666
• GCD of 565, 396, 719, 140
• GCD of 196, 401, 359, 322

Given numbers are 687, 690, 959, 765
The greatest common divisor of numbers 687, 690, 959, 765 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 687, 690, 959, 765 is 1.

1. What is the GCD of 687, 690, 959, 765?

GCD of given numbers 687, 690, 959, 765 is 1

2. How to calculate the greatest common divisor of 687, 690, 959, 765?

We can find the highest common divisor of 687, 690, 959, 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 687, 690, 959, 765 i.e 1.

3. How can I use the GCD of 687, 690, 959, 765Calculator?

Out the numbers 687, 690, 959, 765 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.