GCD of 561, 980, 45, 197 Calculator

Given Input numbers are 561, 980, 45, 197

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

Divisors of 561 :

The positive integer divisors of 561 that completely divides 561 are.

1, 3, 11, 17, 33, 51, 187, 561

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

Divisors of 45 :

The positive integer divisors of 45 that completely divides 45 are.

1, 3, 5, 9, 15, 45

Divisors of 197 :

The positive integer divisors of 197 that completely divides 197 are.

1, 197

GCD of numbers is the greatest common divisor

So, the GCD (561, 980, 45, 197) = 1.

Given numbers are 561, 980, 45, 197

The list of prime factors of all numbers are

Prime factors of 561 are 3 x 11 x 17

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

Prime factors of 45 are 3 x 3 x 5

Prime factors of 197 are 197

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

Given numbers are 561, 980, 45, 197

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

Apply this formula for all numbers.

Step1:

LCM(561, 980) = 549780

GCD(561, 980) = ( 561 x 980 ) / 549780

= 561 / 980

= 561

Step2:

LCM(1, 45) = 45

GCD(1, 45) = ( 1 x 45 ) / 45

= 1 / 45

= 1

Step3:

LCM(1, 197) = 197

GCD(1, 197) = ( 1 x 197 ) / 197

= 1 / 197

= 1

So, Greatest Common Divisor of 561, 980, 45, 197 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 300, 679, 16, 259
• GCD of 285, 777, 86, 202
• GCD of 591, 896, 67, 496
• GCD of 184, 194, 67, 379
• GCD of 890, 702, 84, 928

Given numbers are 561, 980, 45, 197
The greatest common divisor of numbers 561, 980, 45, 197 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 561, 980, 45, 197 is 1.

1. What is the GCD of 561, 980, 45, 197?

GCD of given numbers 561, 980, 45, 197 is 1

2. How to calculate the greatest common divisor of 561, 980, 45, 197?

We can find the highest common divisor of 561, 980, 45, 197 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 561, 980, 45, 197 i.e 1.

3. How can I use the GCD of 561, 980, 45, 197Calculator?

Out the numbers 561, 980, 45, 197 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.