GCD of 821, 393, 878, 628 Calculator

Given Input numbers are 821, 393, 878, 628

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

Divisors of 821 :

The positive integer divisors of 821 that completely divides 821 are.

1, 821

Divisors of 393 :

The positive integer divisors of 393 that completely divides 393 are.

1, 3, 131, 393

Divisors of 878 :

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

1, 2, 439, 878

Divisors of 628 :

The positive integer divisors of 628 that completely divides 628 are.

1, 2, 4, 157, 314, 628

GCD of numbers is the greatest common divisor

So, the GCD (821, 393, 878, 628) = 1.

Given numbers are 821, 393, 878, 628

The list of prime factors of all numbers are

Prime factors of 821 are 821

Prime factors of 393 are 3 x 131

Prime factors of 878 are 2 x 439

Prime factors of 628 are 2 x 2 x 157

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

Given numbers are 821, 393, 878, 628

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

Apply this formula for all numbers.

Step1:

LCM(821, 393) = 322653

GCD(821, 393) = ( 821 x 393 ) / 322653

= 821 / 393

= 821

Step2:

LCM(1, 878) = 878

GCD(1, 878) = ( 1 x 878 ) / 878

= 1 / 878

= 1

Step3:

LCM(1, 628) = 628

GCD(1, 628) = ( 1 x 628 ) / 628

= 1 / 628

= 1

So, Greatest Common Divisor of 821, 393, 878, 628 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 731, 517, 788, 397
• GCD of 269, 414, 367, 291
• GCD of 215, 428, 254, 514
• GCD of 600, 732, 732, 891
• GCD of 536, 967, 255, 634

Given numbers are 821, 393, 878, 628
The greatest common divisor of numbers 821, 393, 878, 628 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 393, 878, 628 is 1.

1. What is the GCD of 821, 393, 878, 628?

GCD of given numbers 821, 393, 878, 628 is 1

2. How to calculate the greatest common divisor of 821, 393, 878, 628?

We can find the highest common divisor of 821, 393, 878, 628 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 821, 393, 878, 628 i.e 1.

3. How can I use the GCD of 821, 393, 878, 628Calculator?

Out the numbers 821, 393, 878, 628 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.