Online GCD Calculator is useful to find the GCD of 208, 388, 456, 721 quickly. Get the easiest ways to solve the greatest common divisor of 208, 388, 456, 721 i.e 1 in different methods as follows.
Given Input numbers are 208, 388, 456, 721
In the factoring method, we have to find the divisors of all numbers
Divisors of 208 :
The positive integer divisors of 208 that completely divides 208 are.
1, 2, 4, 8, 13, 16, 26, 52, 104, 208
Divisors of 388 :
The positive integer divisors of 388 that completely divides 388 are.
1, 2, 4, 97, 194, 388
Divisors of 456 :
The positive integer divisors of 456 that completely divides 456 are.
1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456
Divisors of 721 :
The positive integer divisors of 721 that completely divides 721 are.
1, 7, 103, 721
GCD of numbers is the greatest common divisor
So, the GCD (208, 388, 456, 721) = 1.
Given numbers are 208, 388, 456, 721
The list of prime factors of all numbers are
Prime factors of 208 are 2 x 2 x 2 x 2 x 13
Prime factors of 388 are 2 x 2 x 97
Prime factors of 456 are 2 x 2 x 2 x 3 x 19
Prime factors of 721 are 7 x 103
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 208, 388, 456, 721
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(208, 388) = 20176
GCD(208, 388) = ( 208 x 388 ) / 20176
= 208 / 388
= 208
Step2:
LCM(4, 456) = 456
GCD(4, 456) = ( 4 x 456 ) / 456
= 4 / 456
= 4
Step3:
LCM(4, 721) = 2884
GCD(4, 721) = ( 4 x 721 ) / 2884
= 4 / 721
= 4
So, Greatest Common Divisor of 208, 388, 456, 721 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 208, 388, 456, 721
The greatest common divisor of numbers 208, 388, 456, 721 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 208, 388, 456, 721 is 1.
1. What is the GCD of 208, 388, 456, 721?
GCD of given numbers 208, 388, 456, 721 is 1
2. How to calculate the greatest common divisor of 208, 388, 456, 721?
We can find the highest common divisor of 208, 388, 456, 721 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 208, 388, 456, 721 i.e 1.
3. How can I use the GCD of 208, 388, 456, 721Calculator?
Out the numbers 208, 388, 456, 721 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.