Online GCD Calculator is useful to find the GCD of 398, 180, 360, 790 quickly. Get the easiest ways to solve the greatest common divisor of 398, 180, 360, 790 i.e 2 in different methods as follows.
Given Input numbers are 398, 180, 360, 790
In the factoring method, we have to find the divisors of all numbers
Divisors of 398 :
The positive integer divisors of 398 that completely divides 398 are.
1, 2, 199, 398
Divisors of 180 :
The positive integer divisors of 180 that completely divides 180 are.
1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
Divisors of 360 :
The positive integer divisors of 360 that completely divides 360 are.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360
Divisors of 790 :
The positive integer divisors of 790 that completely divides 790 are.
1, 2, 5, 10, 79, 158, 395, 790
GCD of numbers is the greatest common divisor
So, the GCD (398, 180, 360, 790) = 2.
Given numbers are 398, 180, 360, 790
The list of prime factors of all numbers are
Prime factors of 398 are 2 x 199
Prime factors of 180 are 2 x 2 x 3 x 3 x 5
Prime factors of 360 are 2 x 2 x 2 x 3 x 3 x 5
Prime factors of 790 are 2 x 5 x 79
The highest common occurrence is 21
Therefore, GCD of 398, 180, 360, 790 is 2.
Given numbers are 398, 180, 360, 790
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(398, 180) = 35820
GCD(398, 180) = ( 398 x 180 ) / 35820
= 398 / 180
= 398
Step2:
LCM(2, 360) = 360
GCD(2, 360) = ( 2 x 360 ) / 360
= 2 / 360
= 2
Step3:
LCM(2, 790) = 790
GCD(2, 790) = ( 2 x 790 ) / 790
= 2 / 790
= 2
So, Greatest Common Divisor of 398, 180, 360, 790 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 398, 180, 360, 790
The greatest common divisor of numbers 398, 180, 360, 790 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 398, 180, 360, 790 is 2.
1. What is the GCD of 398, 180, 360, 790?
GCD of given numbers 398, 180, 360, 790 is 2
2. How to calculate the greatest common divisor of 398, 180, 360, 790?
We can find the highest common divisor of 398, 180, 360, 790 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 398, 180, 360, 790 i.e 2.
3. How can I use the GCD of 398, 180, 360, 790Calculator?
Out the numbers 398, 180, 360, 790 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.