GCD of 689, 690, 308, 939 Calculator

Given Input numbers are 689, 690, 308, 939

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

Divisors of 689 :

The positive integer divisors of 689 that completely divides 689 are.

1, 13, 53, 689

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 308 :

The positive integer divisors of 308 that completely divides 308 are.

1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308

Divisors of 939 :

The positive integer divisors of 939 that completely divides 939 are.

1, 3, 313, 939

GCD of numbers is the greatest common divisor

So, the GCD (689, 690, 308, 939) = 1.

Given numbers are 689, 690, 308, 939

The list of prime factors of all numbers are

Prime factors of 689 are 13 x 53

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

Prime factors of 308 are 2 x 2 x 7 x 11

Prime factors of 939 are 3 x 313

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

Given numbers are 689, 690, 308, 939

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

Apply this formula for all numbers.

Step1:

LCM(689, 690) = 475410

GCD(689, 690) = ( 689 x 690 ) / 475410

= 689 / 690

= 689

Step2:

LCM(1, 308) = 308

GCD(1, 308) = ( 1 x 308 ) / 308

= 1 / 308

= 1

Step3:

LCM(1, 939) = 939

GCD(1, 939) = ( 1 x 939 ) / 939

= 1 / 939

= 1

So, Greatest Common Divisor of 689, 690, 308, 939 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 512, 449, 649, 792
• GCD of 155, 836, 501, 302
• GCD of 523, 489, 343, 946
• GCD of 710, 938, 481, 814
• GCD of 785, 867, 933, 556

Given numbers are 689, 690, 308, 939
The greatest common divisor of numbers 689, 690, 308, 939 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 689, 690, 308, 939 is 1.

1. What is the GCD of 689, 690, 308, 939?

GCD of given numbers 689, 690, 308, 939 is 1

2. How to calculate the greatest common divisor of 689, 690, 308, 939?

We can find the highest common divisor of 689, 690, 308, 939 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 689, 690, 308, 939 i.e 1.

3. How can I use the GCD of 689, 690, 308, 939Calculator?

Out the numbers 689, 690, 308, 939 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.