Online GCD Calculator is useful to find the GCD of 421, 931, 918, 720 quickly. Get the easiest ways to solve the greatest common divisor of 421, 931, 918, 720 i.e 1 in different methods as follows.
Given Input numbers are 421, 931, 918, 720
In the factoring method, we have to find the divisors of all numbers
Divisors of 421 :
The positive integer divisors of 421 that completely divides 421 are.
1, 421
Divisors of 931 :
The positive integer divisors of 931 that completely divides 931 are.
1, 7, 19, 49, 133, 931
Divisors of 918 :
The positive integer divisors of 918 that completely divides 918 are.
1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
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 (421, 931, 918, 720) = 1.
Given numbers are 421, 931, 918, 720
The list of prime factors of all numbers are
Prime factors of 421 are 421
Prime factors of 931 are 7 x 7 x 19
Prime factors of 918 are 2 x 3 x 3 x 3 x 17
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 421, 931, 918, 720
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(421, 931) = 391951
GCD(421, 931) = ( 421 x 931 ) / 391951
= 421 / 931
= 421
Step2:
LCM(1, 918) = 918
GCD(1, 918) = ( 1 x 918 ) / 918
= 1 / 918
= 1
Step3:
LCM(1, 720) = 720
GCD(1, 720) = ( 1 x 720 ) / 720
= 1 / 720
= 1
So, Greatest Common Divisor of 421, 931, 918, 720 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 421, 931, 918, 720
The greatest common divisor of numbers 421, 931, 918, 720 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 421, 931, 918, 720 is 1.
1. What is the GCD of 421, 931, 918, 720?
GCD of given numbers 421, 931, 918, 720 is 1
2. How to calculate the greatest common divisor of 421, 931, 918, 720?
We can find the highest common divisor of 421, 931, 918, 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 421, 931, 918, 720 i.e 1.
3. How can I use the GCD of 421, 931, 918, 720Calculator?
Out the numbers 421, 931, 918, 720 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.