GCD of 878, 144, 390, 721 Calculator

Given Input numbers are 878, 144, 390, 721

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

Divisors of 878 :

The positive integer divisors of 878 that completely divides 878 are.

1, 2, 439, 878

Divisors of 144 :

The positive integer divisors of 144 that completely divides 144 are.

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 721 :

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

1, 7, 103, 721

GCD of numbers is the greatest common divisor

So, the GCD (878, 144, 390, 721) = 1.

Given numbers are 878, 144, 390, 721

The list of prime factors of all numbers are

Prime factors of 878 are 2 x 439

Prime factors of 144 are 2 x 2 x 2 x 2 x 3 x 3

Prime factors of 390 are 2 x 3 x 5 x 13

Prime factors of 721 are 7 x 103

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

Given numbers are 878, 144, 390, 721

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

Apply this formula for all numbers.

Step1:

LCM(878, 144) = 63216

GCD(878, 144) = ( 878 x 144 ) / 63216

= 878 / 144

= 878

Step2:

LCM(2, 390) = 390

GCD(2, 390) = ( 2 x 390 ) / 390

= 2 / 390

= 2

Step3:

LCM(2, 721) = 1442

GCD(2, 721) = ( 2 x 721 ) / 1442

= 2 / 721

= 2

So, Greatest Common Divisor of 878, 144, 390, 721 is 1

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• GCD of 887, 863, 506, 951
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Given numbers are 878, 144, 390, 721
The greatest common divisor of numbers 878, 144, 390, 721 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 878, 144, 390, 721 is 1.

1. What is the GCD of 878, 144, 390, 721?

GCD of given numbers 878, 144, 390, 721 is 1

2. How to calculate the greatest common divisor of 878, 144, 390, 721?

We can find the highest common divisor of 878, 144, 390, 721 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 878, 144, 390, 721 i.e 1.

3. How can I use the GCD of 878, 144, 390, 721Calculator?

Out the numbers 878, 144, 390, 721 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.