Online GCD Calculator is useful to find the GCD of 238, 615, 990, 280 quickly. Get the easiest ways to solve the greatest common divisor of 238, 615, 990, 280 i.e 1 in different methods as follows.
Given Input numbers are 238, 615, 990, 280
In the factoring method, we have to find the divisors of all numbers
Divisors of 238 :
The positive integer divisors of 238 that completely divides 238 are.
1, 2, 7, 14, 17, 34, 119, 238
Divisors of 615 :
The positive integer divisors of 615 that completely divides 615 are.
1, 3, 5, 15, 41, 123, 205, 615
Divisors of 990 :
The positive integer divisors of 990 that completely divides 990 are.
1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
Divisors of 280 :
The positive integer divisors of 280 that completely divides 280 are.
1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
GCD of numbers is the greatest common divisor
So, the GCD (238, 615, 990, 280) = 1.
Given numbers are 238, 615, 990, 280
The list of prime factors of all numbers are
Prime factors of 238 are 2 x 7 x 17
Prime factors of 615 are 3 x 5 x 41
Prime factors of 990 are 2 x 3 x 3 x 5 x 11
Prime factors of 280 are 2 x 2 x 2 x 5 x 7
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 238, 615, 990, 280
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(238, 615) = 146370
GCD(238, 615) = ( 238 x 615 ) / 146370
= 238 / 615
= 238
Step2:
LCM(1, 990) = 990
GCD(1, 990) = ( 1 x 990 ) / 990
= 1 / 990
= 1
Step3:
LCM(1, 280) = 280
GCD(1, 280) = ( 1 x 280 ) / 280
= 1 / 280
= 1
So, Greatest Common Divisor of 238, 615, 990, 280 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 238, 615, 990, 280
The greatest common divisor of numbers 238, 615, 990, 280 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 238, 615, 990, 280 is 1.
1. What is the GCD of 238, 615, 990, 280?
GCD of given numbers 238, 615, 990, 280 is 1
2. How to calculate the greatest common divisor of 238, 615, 990, 280?
We can find the highest common divisor of 238, 615, 990, 280 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 238, 615, 990, 280 i.e 1.
3. How can I use the GCD of 238, 615, 990, 280Calculator?
Out the numbers 238, 615, 990, 280 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.