Online GCD Calculator is useful to find the GCD of 221, 401, 720, 939 quickly. Get the easiest ways to solve the greatest common divisor of 221, 401, 720, 939 i.e 1 in different methods as follows.
Given Input numbers are 221, 401, 720, 939
In the factoring method, we have to find the divisors of all numbers
Divisors of 221 :
The positive integer divisors of 221 that completely divides 221 are.
1, 13, 17, 221
Divisors of 401 :
The positive integer divisors of 401 that completely divides 401 are.
1, 401
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
Divisors of 939 :
The positive integer divisors of 939 that completely divides 939 are.
1, 3, 313, 939
GCD of numbers is the greatest common divisor
So, the GCD (221, 401, 720, 939) = 1.
Given numbers are 221, 401, 720, 939
The list of prime factors of all numbers are
Prime factors of 221 are 13 x 17
Prime factors of 401 are 401
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
Prime factors of 939 are 3 x 313
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 221, 401, 720, 939
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(221, 401) = 88621
GCD(221, 401) = ( 221 x 401 ) / 88621
= 221 / 401
= 221
Step2:
LCM(1, 720) = 720
GCD(1, 720) = ( 1 x 720 ) / 720
= 1 / 720
= 1
Step3:
LCM(1, 939) = 939
GCD(1, 939) = ( 1 x 939 ) / 939
= 1 / 939
= 1
So, Greatest Common Divisor of 221, 401, 720, 939 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 221, 401, 720, 939
The greatest common divisor of numbers 221, 401, 720, 939 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 221, 401, 720, 939 is 1.
1. What is the GCD of 221, 401, 720, 939?
GCD of given numbers 221, 401, 720, 939 is 1
2. How to calculate the greatest common divisor of 221, 401, 720, 939?
We can find the highest common divisor of 221, 401, 720, 939 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 221, 401, 720, 939 i.e 1.
3. How can I use the GCD of 221, 401, 720, 939Calculator?
Out the numbers 221, 401, 720, 939 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.