Online GCD Calculator is useful to find the GCD of 628, 765, 720, 655 quickly. Get the easiest ways to solve the greatest common divisor of 628, 765, 720, 655 i.e 1 in different methods as follows.
Given Input numbers are 628, 765, 720, 655
In the factoring method, we have to find the divisors of all numbers
Divisors of 628 :
The positive integer divisors of 628 that completely divides 628 are.
1, 2, 4, 157, 314, 628
Divisors of 765 :
The positive integer divisors of 765 that completely divides 765 are.
1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765
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 655 :
The positive integer divisors of 655 that completely divides 655 are.
1, 5, 131, 655
GCD of numbers is the greatest common divisor
So, the GCD (628, 765, 720, 655) = 1.
Given numbers are 628, 765, 720, 655
The list of prime factors of all numbers are
Prime factors of 628 are 2 x 2 x 157
Prime factors of 765 are 3 x 3 x 5 x 17
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
Prime factors of 655 are 5 x 131
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 628, 765, 720, 655
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(628, 765) = 480420
GCD(628, 765) = ( 628 x 765 ) / 480420
= 628 / 765
= 628
Step2:
LCM(1, 720) = 720
GCD(1, 720) = ( 1 x 720 ) / 720
= 1 / 720
= 1
Step3:
LCM(1, 655) = 655
GCD(1, 655) = ( 1 x 655 ) / 655
= 1 / 655
= 1
So, Greatest Common Divisor of 628, 765, 720, 655 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 628, 765, 720, 655
The greatest common divisor of numbers 628, 765, 720, 655 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 628, 765, 720, 655 is 1.
1. What is the GCD of 628, 765, 720, 655?
GCD of given numbers 628, 765, 720, 655 is 1
2. How to calculate the greatest common divisor of 628, 765, 720, 655?
We can find the highest common divisor of 628, 765, 720, 655 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 628, 765, 720, 655 i.e 1.
3. How can I use the GCD of 628, 765, 720, 655Calculator?
Out the numbers 628, 765, 720, 655 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.