Online GCD Calculator is useful to find the GCD of 520, 390, 719, 821 quickly. Get the easiest ways to solve the greatest common divisor of 520, 390, 719, 821 i.e 1 in different methods as follows.
Given Input numbers are 520, 390, 719, 821
In the factoring method, we have to find the divisors of all numbers
Divisors of 520 :
The positive integer divisors of 520 that completely divides 520 are.
1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520
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 719 :
The positive integer divisors of 719 that completely divides 719 are.
1, 719
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 (520, 390, 719, 821) = 1.
Given numbers are 520, 390, 719, 821
The list of prime factors of all numbers are
Prime factors of 520 are 2 x 2 x 2 x 5 x 13
Prime factors of 390 are 2 x 3 x 5 x 13
Prime factors of 719 are 719
Prime factors of 821 are 821
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 520, 390, 719, 821
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(520, 390) = 1560
GCD(520, 390) = ( 520 x 390 ) / 1560
= 520 / 390
= 520
Step2:
LCM(130, 719) = 93470
GCD(130, 719) = ( 130 x 719 ) / 93470
= 130 / 719
= 130
Step3:
LCM(1, 821) = 821
GCD(1, 821) = ( 1 x 821 ) / 821
= 1 / 821
= 1
So, Greatest Common Divisor of 520, 390, 719, 821 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 520, 390, 719, 821
The greatest common divisor of numbers 520, 390, 719, 821 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 520, 390, 719, 821 is 1.
1. What is the GCD of 520, 390, 719, 821?
GCD of given numbers 520, 390, 719, 821 is 1
2. How to calculate the greatest common divisor of 520, 390, 719, 821?
We can find the highest common divisor of 520, 390, 719, 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 520, 390, 719, 821 i.e 1.
3. How can I use the GCD of 520, 390, 719, 821Calculator?
Out the numbers 520, 390, 719, 821 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.