GCD of 853, 645, 486, 420 Calculator

Given Input numbers are 853, 645, 486, 420

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

Divisors of 853 :

The positive integer divisors of 853 that completely divides 853 are.

1, 853

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 486 :

The positive integer divisors of 486 that completely divides 486 are.

1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486

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 (853, 645, 486, 420) = 1.

Given numbers are 853, 645, 486, 420

The list of prime factors of all numbers are

Prime factors of 853 are 853

Prime factors of 645 are 3 x 5 x 43

Prime factors of 486 are 2 x 3 x 3 x 3 x 3 x 3

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 853, 645, 486, 420

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

Apply this formula for all numbers.

Step1:

LCM(853, 645) = 550185

GCD(853, 645) = ( 853 x 645 ) / 550185

= 853 / 645

= 853

Step2:

LCM(1, 486) = 486

GCD(1, 486) = ( 1 x 486 ) / 486

= 1 / 486

= 1

Step3:

LCM(1, 420) = 420

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

= 1 / 420

= 1

So, Greatest Common Divisor of 853, 645, 486, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 200, 486, 932, 350
• GCD of 181, 287, 953, 623
• GCD of 402, 989, 945, 886
• GCD of 689, 352, 896, 399
• GCD of 665, 430, 566, 440

Given numbers are 853, 645, 486, 420
The greatest common divisor of numbers 853, 645, 486, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 853, 645, 486, 420 is 1.

1. What is the GCD of 853, 645, 486, 420?

GCD of given numbers 853, 645, 486, 420 is 1

2. How to calculate the greatest common divisor of 853, 645, 486, 420?

We can find the highest common divisor of 853, 645, 486, 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 853, 645, 486, 420 i.e 1.

3. How can I use the GCD of 853, 645, 486, 420Calculator?

Out the numbers 853, 645, 486, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.