Online GCD Calculator is useful to find the GCD of 821, 390, 782, 577 quickly. Get the easiest ways to solve the greatest common divisor of 821, 390, 782, 577 i.e 1 in different methods as follows.
Given Input numbers are 821, 390, 782, 577
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 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 782 :
The positive integer divisors of 782 that completely divides 782 are.
1, 2, 17, 23, 34, 46, 391, 782
Divisors of 577 :
The positive integer divisors of 577 that completely divides 577 are.
1, 577
GCD of numbers is the greatest common divisor
So, the GCD (821, 390, 782, 577) = 1.
Given numbers are 821, 390, 782, 577
The list of prime factors of all numbers are
Prime factors of 821 are 821
Prime factors of 390 are 2 x 3 x 5 x 13
Prime factors of 782 are 2 x 17 x 23
Prime factors of 577 are 577
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 821, 390, 782, 577
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(821, 390) = 320190
GCD(821, 390) = ( 821 x 390 ) / 320190
= 821 / 390
= 821
Step2:
LCM(1, 782) = 782
GCD(1, 782) = ( 1 x 782 ) / 782
= 1 / 782
= 1
Step3:
LCM(1, 577) = 577
GCD(1, 577) = ( 1 x 577 ) / 577
= 1 / 577
= 1
So, Greatest Common Divisor of 821, 390, 782, 577 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 821, 390, 782, 577
The greatest common divisor of numbers 821, 390, 782, 577 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 390, 782, 577 is 1.
1. What is the GCD of 821, 390, 782, 577?
GCD of given numbers 821, 390, 782, 577 is 1
2. How to calculate the greatest common divisor of 821, 390, 782, 577?
We can find the highest common divisor of 821, 390, 782, 577 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, 390, 782, 577 i.e 1.
3. How can I use the GCD of 821, 390, 782, 577Calculator?
Out the numbers 821, 390, 782, 577 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.