GCD of 549, 686, 728, 155 Calculator

Given Input numbers are 549, 686, 728, 155

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 686 :

The positive integer divisors of 686 that completely divides 686 are.

1, 2, 7, 14, 49, 98, 343, 686

Divisors of 728 :

The positive integer divisors of 728 that completely divides 728 are.

1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728

Divisors of 155 :

The positive integer divisors of 155 that completely divides 155 are.

1, 5, 31, 155

GCD of numbers is the greatest common divisor

So, the GCD (549, 686, 728, 155) = 1.

Given numbers are 549, 686, 728, 155

The list of prime factors of all numbers are

Prime factors of 549 are 3 x 3 x 61

Prime factors of 686 are 2 x 7 x 7 x 7

Prime factors of 728 are 2 x 2 x 2 x 7 x 13

Prime factors of 155 are 5 x 31

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

Given numbers are 549, 686, 728, 155

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

Apply this formula for all numbers.

Step1:

LCM(549, 686) = 376614

GCD(549, 686) = ( 549 x 686 ) / 376614

= 549 / 686

= 549

Step2:

LCM(1, 728) = 728

GCD(1, 728) = ( 1 x 728 ) / 728

= 1 / 728

= 1

Step3:

LCM(1, 155) = 155

GCD(1, 155) = ( 1 x 155 ) / 155

= 1 / 155

= 1

So, Greatest Common Divisor of 549, 686, 728, 155 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 993, 190, 455, 413
• GCD of 925, 935, 456, 130
• GCD of 423, 489, 671, 955
• GCD of 262, 153, 556, 712
• GCD of 964, 803, 245, 120

Given numbers are 549, 686, 728, 155
The greatest common divisor of numbers 549, 686, 728, 155 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 549, 686, 728, 155 is 1.

1. What is the GCD of 549, 686, 728, 155?

GCD of given numbers 549, 686, 728, 155 is 1

2. How to calculate the greatest common divisor of 549, 686, 728, 155?

We can find the highest common divisor of 549, 686, 728, 155 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, 686, 728, 155 i.e 1.

3. How can I use the GCD of 549, 686, 728, 155Calculator?

Out the numbers 549, 686, 728, 155 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.