GCD of 617, 990, 388, 980 Calculator

Given Input numbers are 617, 990, 388, 980

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

Divisors of 617 :

The positive integer divisors of 617 that completely divides 617 are.

1, 617

Divisors of 990 :

The positive integer divisors of 990 that completely divides 990 are.

1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

Divisors of 388 :

The positive integer divisors of 388 that completely divides 388 are.

1, 2, 4, 97, 194, 388

Divisors of 980 :

The positive integer divisors of 980 that completely divides 980 are.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980

GCD of numbers is the greatest common divisor

So, the GCD (617, 990, 388, 980) = 1.

Given numbers are 617, 990, 388, 980

The list of prime factors of all numbers are

Prime factors of 617 are 617

Prime factors of 990 are 2 x 3 x 3 x 5 x 11

Prime factors of 388 are 2 x 2 x 97

Prime factors of 980 are 2 x 2 x 5 x 7 x 7

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

Given numbers are 617, 990, 388, 980

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

Apply this formula for all numbers.

Step1:

LCM(617, 990) = 610830

GCD(617, 990) = ( 617 x 990 ) / 610830

= 617 / 990

= 617

Step2:

LCM(1, 388) = 388

GCD(1, 388) = ( 1 x 388 ) / 388

= 1 / 388

= 1

Step3:

LCM(1, 980) = 980

GCD(1, 980) = ( 1 x 980 ) / 980

= 1 / 980

= 1

So, Greatest Common Divisor of 617, 990, 388, 980 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 994, 250, 102, 765
• GCD of 682, 930, 635, 696
• GCD of 481, 448, 452, 183
• GCD of 581, 374, 857, 105
• GCD of 778, 698, 189, 883

Given numbers are 617, 990, 388, 980
The greatest common divisor of numbers 617, 990, 388, 980 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 617, 990, 388, 980 is 1.

1. What is the GCD of 617, 990, 388, 980?

GCD of given numbers 617, 990, 388, 980 is 1

2. How to calculate the greatest common divisor of 617, 990, 388, 980?

We can find the highest common divisor of 617, 990, 388, 980 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 617, 990, 388, 980 i.e 1.

3. How can I use the GCD of 617, 990, 388, 980Calculator?

Out the numbers 617, 990, 388, 980 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.