GCD of 989, 919, 688, 686 Calculator

Given Input numbers are 989, 919, 688, 686

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

Divisors of 989 :

The positive integer divisors of 989 that completely divides 989 are.

1, 23, 43, 989

Divisors of 919 :

The positive integer divisors of 919 that completely divides 919 are.

1, 919

Divisors of 688 :

The positive integer divisors of 688 that completely divides 688 are.

1, 2, 4, 8, 16, 43, 86, 172, 344, 688

Divisors of 686 :

The positive integer divisors of 686 that completely divides 686 are.

1, 2, 7, 14, 49, 98, 343, 686

GCD of numbers is the greatest common divisor

So, the GCD (989, 919, 688, 686) = 1.

Given numbers are 989, 919, 688, 686

The list of prime factors of all numbers are

Prime factors of 989 are 23 x 43

Prime factors of 919 are 919

Prime factors of 688 are 2 x 2 x 2 x 2 x 43

Prime factors of 686 are 2 x 7 x 7 x 7

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

Given numbers are 989, 919, 688, 686

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

Apply this formula for all numbers.

Step1:

LCM(989, 919) = 908891

GCD(989, 919) = ( 989 x 919 ) / 908891

= 989 / 919

= 989

Step2:

LCM(1, 688) = 688

GCD(1, 688) = ( 1 x 688 ) / 688

= 1 / 688

= 1

Step3:

LCM(1, 686) = 686

GCD(1, 686) = ( 1 x 686 ) / 686

= 1 / 686

= 1

So, Greatest Common Divisor of 989, 919, 688, 686 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 178, 128, 467, 810
• GCD of 568, 845, 677, 174
• GCD of 405, 173, 640, 344
• GCD of 833, 579, 787, 785
• GCD of 747, 935, 123, 988

Given numbers are 989, 919, 688, 686
The greatest common divisor of numbers 989, 919, 688, 686 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 989, 919, 688, 686 is 1.

1. What is the GCD of 989, 919, 688, 686?

GCD of given numbers 989, 919, 688, 686 is 1

2. How to calculate the greatest common divisor of 989, 919, 688, 686?

We can find the highest common divisor of 989, 919, 688, 686 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 989, 919, 688, 686 i.e 1.

3. How can I use the GCD of 989, 919, 688, 686Calculator?

Out the numbers 989, 919, 688, 686 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.