Online GCD Calculator is useful to find the GCD of 153, 289, 721 quickly. Get the easiest ways to solve the greatest common divisor of 153, 289, 721 i.e 1 in different methods as follows.
Given Input numbers are 153, 289, 721
In the factoring method, we have to find the divisors of all numbers
Divisors of 153 :
The positive integer divisors of 153 that completely divides 153 are.
1, 3, 9, 17, 51, 153
Divisors of 289 :
The positive integer divisors of 289 that completely divides 289 are.
1, 17, 289
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 (153, 289, 721) = 1.
Given numbers are 153, 289, 721
The list of prime factors of all numbers are
Prime factors of 153 are 3 x 3 x 17
Prime factors of 289 are 17 x 17
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 153, 289, 721
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(153, 289) = 2601
GCD(153, 289) = ( 153 x 289 ) / 2601
= 153 / 289
= 153
Step2:
LCM(17, 721) = 12257
GCD(17, 721) = ( 17 x 721 ) / 12257
= 17 / 721
= 17
So, Greatest Common Divisor of 153, 289, 721 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 153, 289, 721
The greatest common divisor of numbers 153, 289, 721 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 153, 289, 721 is 1.
1. What is the GCD of 153, 289, 721?
GCD of given numbers 153, 289, 721 is 1
2. How to calculate the greatest common divisor of 153, 289, 721?
We can find the highest common divisor of 153, 289, 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 153, 289, 721 i.e 1.
3. How can I use the GCD of 153, 289, 721Calculator?
Out the numbers 153, 289, 721 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.