GCD of 261, 198, 781, 477 Calculator

Given Input numbers are 261, 198, 781, 477

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

Divisors of 261 :

The positive integer divisors of 261 that completely divides 261 are.

1, 3, 9, 29, 87, 261

Divisors of 198 :

The positive integer divisors of 198 that completely divides 198 are.

1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198

Divisors of 781 :

The positive integer divisors of 781 that completely divides 781 are.

1, 11, 71, 781

Divisors of 477 :

The positive integer divisors of 477 that completely divides 477 are.

1, 3, 9, 53, 159, 477

GCD of numbers is the greatest common divisor

So, the GCD (261, 198, 781, 477) = 1.

Given numbers are 261, 198, 781, 477

The list of prime factors of all numbers are

Prime factors of 261 are 3 x 3 x 29

Prime factors of 198 are 2 x 3 x 3 x 11

Prime factors of 781 are 11 x 71

Prime factors of 477 are 3 x 3 x 53

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

Given numbers are 261, 198, 781, 477

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

Apply this formula for all numbers.

Step1:

LCM(261, 198) = 5742

GCD(261, 198) = ( 261 x 198 ) / 5742

= 261 / 198

= 261

Step2:

LCM(9, 781) = 7029

GCD(9, 781) = ( 9 x 781 ) / 7029

= 9 / 781

= 9

Step3:

LCM(1, 477) = 477

GCD(1, 477) = ( 1 x 477 ) / 477

= 1 / 477

= 1

So, Greatest Common Divisor of 261, 198, 781, 477 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 885, 977, 969, 128
• GCD of 185, 400, 241, 957
• GCD of 533, 104, 579, 452
• GCD of 746, 120, 880, 507
• GCD of 869, 662, 826, 188

Given numbers are 261, 198, 781, 477
The greatest common divisor of numbers 261, 198, 781, 477 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 261, 198, 781, 477 is 1.

1. What is the GCD of 261, 198, 781, 477?

GCD of given numbers 261, 198, 781, 477 is 1

2. How to calculate the greatest common divisor of 261, 198, 781, 477?

We can find the highest common divisor of 261, 198, 781, 477 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 261, 198, 781, 477 i.e 1.

3. How can I use the GCD of 261, 198, 781, 477Calculator?

Out the numbers 261, 198, 781, 477 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.