GCD of 721, 123, 308, 168 Calculator

Given Input numbers are 721, 123, 308, 168

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

Divisors of 721 :

The positive integer divisors of 721 that completely divides 721 are.

1, 7, 103, 721

Divisors of 123 :

The positive integer divisors of 123 that completely divides 123 are.

1, 3, 41, 123

Divisors of 308 :

The positive integer divisors of 308 that completely divides 308 are.

1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308

Divisors of 168 :

The positive integer divisors of 168 that completely divides 168 are.

1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168

GCD of numbers is the greatest common divisor

So, the GCD (721, 123, 308, 168) = 1.

Given numbers are 721, 123, 308, 168

The list of prime factors of all numbers are

Prime factors of 721 are 7 x 103

Prime factors of 123 are 3 x 41

Prime factors of 308 are 2 x 2 x 7 x 11

Prime factors of 168 are 2 x 2 x 2 x 3 x 7

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

Given numbers are 721, 123, 308, 168

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

Apply this formula for all numbers.

Step1:

LCM(721, 123) = 88683

GCD(721, 123) = ( 721 x 123 ) / 88683

= 721 / 123

= 721

Step2:

LCM(1, 308) = 308

GCD(1, 308) = ( 1 x 308 ) / 308

= 1 / 308

= 1

Step3:

LCM(1, 168) = 168

GCD(1, 168) = ( 1 x 168 ) / 168

= 1 / 168

= 1

So, Greatest Common Divisor of 721, 123, 308, 168 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 784, 676, 446, 743
• GCD of 130, 537, 621, 794
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Given numbers are 721, 123, 308, 168
The greatest common divisor of numbers 721, 123, 308, 168 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 721, 123, 308, 168 is 1.

1. What is the GCD of 721, 123, 308, 168?

GCD of given numbers 721, 123, 308, 168 is 1

2. How to calculate the greatest common divisor of 721, 123, 308, 168?

We can find the highest common divisor of 721, 123, 308, 168 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 721, 123, 308, 168 i.e 1.

3. How can I use the GCD of 721, 123, 308, 168Calculator?

Out the numbers 721, 123, 308, 168 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.