Online GCD Calculator is useful to find the GCD of 143, 820, 821 quickly. Get the easiest ways to solve the greatest common divisor of 143, 820, 821 i.e 1 in different methods as follows.
Given Input numbers are 143, 820, 821
In the factoring method, we have to find the divisors of all numbers
Divisors of 143 :
The positive integer divisors of 143 that completely divides 143 are.
1, 11, 13, 143
Divisors of 820 :
The positive integer divisors of 820 that completely divides 820 are.
1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
Divisors of 821 :
The positive integer divisors of 821 that completely divides 821 are.
1, 821
GCD of numbers is the greatest common divisor
So, the GCD (143, 820, 821) = 1.
Given numbers are 143, 820, 821
The list of prime factors of all numbers are
Prime factors of 143 are 11 x 13
Prime factors of 820 are 2 x 2 x 5 x 41
Prime factors of 821 are 821
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 143, 820, 821
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(143, 820) = 117260
GCD(143, 820) = ( 143 x 820 ) / 117260
= 143 / 820
= 143
Step2:
LCM(1, 821) = 821
GCD(1, 821) = ( 1 x 821 ) / 821
= 1 / 821
= 1
So, Greatest Common Divisor of 143, 820, 821 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 143, 820, 821
The greatest common divisor of numbers 143, 820, 821 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 143, 820, 821 is 1.
1. What is the GCD of 143, 820, 821?
GCD of given numbers 143, 820, 821 is 1
2. How to calculate the greatest common divisor of 143, 820, 821?
We can find the highest common divisor of 143, 820, 821 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 143, 820, 821 i.e 1.
3. How can I use the GCD of 143, 820, 821Calculator?
Out the numbers 143, 820, 821 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.