GCD of 689, 139, 558, 981 Calculator

Given Input numbers are 689, 139, 558, 981

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 139 :

The positive integer divisors of 139 that completely divides 139 are.

1, 139

Divisors of 558 :

The positive integer divisors of 558 that completely divides 558 are.

1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558

Divisors of 981 :

The positive integer divisors of 981 that completely divides 981 are.

1, 3, 9, 109, 327, 981

GCD of numbers is the greatest common divisor

So, the GCD (689, 139, 558, 981) = 1.

Given numbers are 689, 139, 558, 981

The list of prime factors of all numbers are

Prime factors of 689 are 13 x 53

Prime factors of 139 are 139

Prime factors of 558 are 2 x 3 x 3 x 31

Prime factors of 981 are 3 x 3 x 109

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

Given numbers are 689, 139, 558, 981

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

Apply this formula for all numbers.

Step1:

LCM(689, 139) = 95771

GCD(689, 139) = ( 689 x 139 ) / 95771

= 689 / 139

= 689

Step2:

LCM(1, 558) = 558

GCD(1, 558) = ( 1 x 558 ) / 558

= 1 / 558

= 1

Step3:

LCM(1, 981) = 981

GCD(1, 981) = ( 1 x 981 ) / 981

= 1 / 981

= 1

So, Greatest Common Divisor of 689, 139, 558, 981 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 793, 622, 796, 118
• GCD of 884, 741, 146, 895
• GCD of 949, 310, 625, 362
• GCD of 397, 722, 135, 988
• GCD of 148, 558, 837, 999

Given numbers are 689, 139, 558, 981
The greatest common divisor of numbers 689, 139, 558, 981 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 689, 139, 558, 981 is 1.

1. What is the GCD of 689, 139, 558, 981?

GCD of given numbers 689, 139, 558, 981 is 1

2. How to calculate the greatest common divisor of 689, 139, 558, 981?

We can find the highest common divisor of 689, 139, 558, 981 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, 139, 558, 981 i.e 1.

3. How can I use the GCD of 689, 139, 558, 981Calculator?

Out the numbers 689, 139, 558, 981 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.