Online GCD Calculator is useful to find the GCD of 724, 357, 720, 640 quickly. Get the easiest ways to solve the greatest common divisor of 724, 357, 720, 640 i.e 1 in different methods as follows.
Given Input numbers are 724, 357, 720, 640
In the factoring method, we have to find the divisors of all numbers
Divisors of 724 :
The positive integer divisors of 724 that completely divides 724 are.
1, 2, 4, 181, 362, 724
Divisors of 357 :
The positive integer divisors of 357 that completely divides 357 are.
1, 3, 7, 17, 21, 51, 119, 357
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 640 :
The positive integer divisors of 640 that completely divides 640 are.
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
GCD of numbers is the greatest common divisor
So, the GCD (724, 357, 720, 640) = 1.
Given numbers are 724, 357, 720, 640
The list of prime factors of all numbers are
Prime factors of 724 are 2 x 2 x 181
Prime factors of 357 are 3 x 7 x 17
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
Prime factors of 640 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 724, 357, 720, 640
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(724, 357) = 258468
GCD(724, 357) = ( 724 x 357 ) / 258468
= 724 / 357
= 724
Step2:
LCM(1, 720) = 720
GCD(1, 720) = ( 1 x 720 ) / 720
= 1 / 720
= 1
Step3:
LCM(1, 640) = 640
GCD(1, 640) = ( 1 x 640 ) / 640
= 1 / 640
= 1
So, Greatest Common Divisor of 724, 357, 720, 640 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 724, 357, 720, 640
The greatest common divisor of numbers 724, 357, 720, 640 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 724, 357, 720, 640 is 1.
1. What is the GCD of 724, 357, 720, 640?
GCD of given numbers 724, 357, 720, 640 is 1
2. How to calculate the greatest common divisor of 724, 357, 720, 640?
We can find the highest common divisor of 724, 357, 720, 640 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 724, 357, 720, 640 i.e 1.
3. How can I use the GCD of 724, 357, 720, 640Calculator?
Out the numbers 724, 357, 720, 640 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.