GCD of 923, 723, 821, 420 Calculator

Given Input numbers are 923, 723, 821, 420

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

Divisors of 923 :

The positive integer divisors of 923 that completely divides 923 are.

1, 13, 71, 923

Divisors of 723 :

The positive integer divisors of 723 that completely divides 723 are.

1, 3, 241, 723

Divisors of 821 :

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

1, 821

Divisors of 420 :

The positive integer divisors of 420 that completely divides 420 are.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

GCD of numbers is the greatest common divisor

So, the GCD (923, 723, 821, 420) = 1.

Given numbers are 923, 723, 821, 420

The list of prime factors of all numbers are

Prime factors of 923 are 13 x 71

Prime factors of 723 are 3 x 241

Prime factors of 821 are 821

Prime factors of 420 are 2 x 2 x 3 x 5 x 7

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

Given numbers are 923, 723, 821, 420

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

Apply this formula for all numbers.

Step1:

LCM(923, 723) = 667329

GCD(923, 723) = ( 923 x 723 ) / 667329

= 923 / 723

= 923

Step2:

LCM(1, 821) = 821

GCD(1, 821) = ( 1 x 821 ) / 821

= 1 / 821

= 1

Step3:

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

= 1 / 420

= 1

So, Greatest Common Divisor of 923, 723, 821, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 300, 445, 760, 857
• GCD of 358, 972, 837, 165
• GCD of 233, 424, 147, 589
• GCD of 138, 580, 451, 395
• GCD of 142, 107, 267, 657

Given numbers are 923, 723, 821, 420
The greatest common divisor of numbers 923, 723, 821, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 923, 723, 821, 420 is 1.

1. What is the GCD of 923, 723, 821, 420?

GCD of given numbers 923, 723, 821, 420 is 1

2. How to calculate the greatest common divisor of 923, 723, 821, 420?

We can find the highest common divisor of 923, 723, 821, 420 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 923, 723, 821, 420 i.e 1.

3. How can I use the GCD of 923, 723, 821, 420Calculator?

Out the numbers 923, 723, 821, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.