Online GCD Calculator is useful to find the GCD of 813, 120, 815, 630 quickly. Get the easiest ways to solve the greatest common divisor of 813, 120, 815, 630 i.e 1 in different methods as follows.
Given Input numbers are 813, 120, 815, 630
In the factoring method, we have to find the divisors of all numbers
Divisors of 813 :
The positive integer divisors of 813 that completely divides 813 are.
1, 3, 271, 813
Divisors of 120 :
The positive integer divisors of 120 that completely divides 120 are.
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
Divisors of 815 :
The positive integer divisors of 815 that completely divides 815 are.
1, 5, 163, 815
Divisors of 630 :
The positive integer divisors of 630 that completely divides 630 are.
1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630
GCD of numbers is the greatest common divisor
So, the GCD (813, 120, 815, 630) = 1.
Given numbers are 813, 120, 815, 630
The list of prime factors of all numbers are
Prime factors of 813 are 3 x 271
Prime factors of 120 are 2 x 2 x 2 x 3 x 5
Prime factors of 815 are 5 x 163
Prime factors of 630 are 2 x 3 x 3 x 5 x 7
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 813, 120, 815, 630
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(813, 120) = 32520
GCD(813, 120) = ( 813 x 120 ) / 32520
= 813 / 120
= 813
Step2:
LCM(3, 815) = 2445
GCD(3, 815) = ( 3 x 815 ) / 2445
= 3 / 815
= 3
Step3:
LCM(1, 630) = 630
GCD(1, 630) = ( 1 x 630 ) / 630
= 1 / 630
= 1
So, Greatest Common Divisor of 813, 120, 815, 630 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 813, 120, 815, 630
The greatest common divisor of numbers 813, 120, 815, 630 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 813, 120, 815, 630 is 1.
1. What is the GCD of 813, 120, 815, 630?
GCD of given numbers 813, 120, 815, 630 is 1
2. How to calculate the greatest common divisor of 813, 120, 815, 630?
We can find the highest common divisor of 813, 120, 815, 630 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 813, 120, 815, 630 i.e 1.
3. How can I use the GCD of 813, 120, 815, 630Calculator?
Out the numbers 813, 120, 815, 630 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.