Online GCD Calculator is useful to find the GCD of 721, 159, 625, 621 quickly. Get the easiest ways to solve the greatest common divisor of 721, 159, 625, 621 i.e 1 in different methods as follows.
Given Input numbers are 721, 159, 625, 621
In the factoring method, we have to find the divisors of all numbers
Divisors of 721 :
The positive integer divisors of 721 that completely divides 721 are.
1, 7, 103, 721
Divisors of 159 :
The positive integer divisors of 159 that completely divides 159 are.
1, 3, 53, 159
Divisors of 625 :
The positive integer divisors of 625 that completely divides 625 are.
1, 5, 25, 125, 625
Divisors of 621 :
The positive integer divisors of 621 that completely divides 621 are.
1, 3, 9, 23, 27, 69, 207, 621
GCD of numbers is the greatest common divisor
So, the GCD (721, 159, 625, 621) = 1.
Given numbers are 721, 159, 625, 621
The list of prime factors of all numbers are
Prime factors of 721 are 7 x 103
Prime factors of 159 are 3 x 53
Prime factors of 625 are 5 x 5 x 5 x 5
Prime factors of 621 are 3 x 3 x 3 x 23
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 721, 159, 625, 621
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(721, 159) = 114639
GCD(721, 159) = ( 721 x 159 ) / 114639
= 721 / 159
= 721
Step2:
LCM(1, 625) = 625
GCD(1, 625) = ( 1 x 625 ) / 625
= 1 / 625
= 1
Step3:
LCM(1, 621) = 621
GCD(1, 621) = ( 1 x 621 ) / 621
= 1 / 621
= 1
So, Greatest Common Divisor of 721, 159, 625, 621 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 721, 159, 625, 621
The greatest common divisor of numbers 721, 159, 625, 621 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 721, 159, 625, 621 is 1.
1. What is the GCD of 721, 159, 625, 621?
GCD of given numbers 721, 159, 625, 621 is 1
2. How to calculate the greatest common divisor of 721, 159, 625, 621?
We can find the highest common divisor of 721, 159, 625, 621 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 721, 159, 625, 621 i.e 1.
3. How can I use the GCD of 721, 159, 625, 621Calculator?
Out the numbers 721, 159, 625, 621 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.