Online GCD Calculator is useful to find the GCD of 810, 693, 428, 720 quickly. Get the easiest ways to solve the greatest common divisor of 810, 693, 428, 720 i.e 1 in different methods as follows.
Given Input numbers are 810, 693, 428, 720
In the factoring method, we have to find the divisors of all numbers
Divisors of 810 :
The positive integer divisors of 810 that completely divides 810 are.
1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810
Divisors of 693 :
The positive integer divisors of 693 that completely divides 693 are.
1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693
Divisors of 428 :
The positive integer divisors of 428 that completely divides 428 are.
1, 2, 4, 107, 214, 428
Divisors of 720 :
The positive integer divisors of 720 that completely divides 720 are.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
GCD of numbers is the greatest common divisor
So, the GCD (810, 693, 428, 720) = 1.
Given numbers are 810, 693, 428, 720
The list of prime factors of all numbers are
Prime factors of 810 are 2 x 3 x 3 x 3 x 3 x 5
Prime factors of 693 are 3 x 3 x 7 x 11
Prime factors of 428 are 2 x 2 x 107
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 810, 693, 428, 720
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(810, 693) = 62370
GCD(810, 693) = ( 810 x 693 ) / 62370
= 810 / 693
= 810
Step2:
LCM(9, 428) = 3852
GCD(9, 428) = ( 9 x 428 ) / 3852
= 9 / 428
= 9
Step3:
LCM(1, 720) = 720
GCD(1, 720) = ( 1 x 720 ) / 720
= 1 / 720
= 1
So, Greatest Common Divisor of 810, 693, 428, 720 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 810, 693, 428, 720
The greatest common divisor of numbers 810, 693, 428, 720 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 810, 693, 428, 720 is 1.
1. What is the GCD of 810, 693, 428, 720?
GCD of given numbers 810, 693, 428, 720 is 1
2. How to calculate the greatest common divisor of 810, 693, 428, 720?
We can find the highest common divisor of 810, 693, 428, 720 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 810, 693, 428, 720 i.e 1.
3. How can I use the GCD of 810, 693, 428, 720Calculator?
Out the numbers 810, 693, 428, 720 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.