GCD of 549, 840, 324, 391 Calculator

Given Input numbers are 549, 840, 324, 391

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

Divisors of 549 :

The positive integer divisors of 549 that completely divides 549 are.

1, 3, 9, 61, 183, 549

Divisors of 840 :

The positive integer divisors of 840 that completely divides 840 are.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

Divisors of 324 :

The positive integer divisors of 324 that completely divides 324 are.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324

Divisors of 391 :

The positive integer divisors of 391 that completely divides 391 are.

1, 17, 23, 391

GCD of numbers is the greatest common divisor

So, the GCD (549, 840, 324, 391) = 1.

Given numbers are 549, 840, 324, 391

The list of prime factors of all numbers are

Prime factors of 549 are 3 x 3 x 61

Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7

Prime factors of 324 are 2 x 2 x 3 x 3 x 3 x 3

Prime factors of 391 are 17 x 23

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

Given numbers are 549, 840, 324, 391

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

Apply this formula for all numbers.

Step1:

LCM(549, 840) = 153720

GCD(549, 840) = ( 549 x 840 ) / 153720

= 549 / 840

= 549

Step2:

LCM(3, 324) = 324

GCD(3, 324) = ( 3 x 324 ) / 324

= 3 / 324

= 3

Step3:

LCM(3, 391) = 1173

GCD(3, 391) = ( 3 x 391 ) / 1173

= 3 / 391

= 3

So, Greatest Common Divisor of 549, 840, 324, 391 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 901, 657, 707, 294
• GCD of 434, 263, 368, 386
• GCD of 695, 932, 779, 564
• GCD of 153, 531, 923, 271
• GCD of 153, 101, 773, 221

Given numbers are 549, 840, 324, 391
The greatest common divisor of numbers 549, 840, 324, 391 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 549, 840, 324, 391 is 1.

1. What is the GCD of 549, 840, 324, 391?

GCD of given numbers 549, 840, 324, 391 is 1

2. How to calculate the greatest common divisor of 549, 840, 324, 391?

We can find the highest common divisor of 549, 840, 324, 391 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 549, 840, 324, 391 i.e 1.

3. How can I use the GCD of 549, 840, 324, 391Calculator?

Out the numbers 549, 840, 324, 391 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.