Online GCD Calculator is useful to find the GCD of 665, 120, 156, 747 quickly. Get the easiest ways to solve the greatest common divisor of 665, 120, 156, 747 i.e 1 in different methods as follows.
Given Input numbers are 665, 120, 156, 747
In the factoring method, we have to find the divisors of all numbers
Divisors of 665 :
The positive integer divisors of 665 that completely divides 665 are.
1, 5, 7, 19, 35, 95, 133, 665
Divisors of 120 :
The positive integer divisors of 120 that completely divides 120 are.
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
Divisors of 156 :
The positive integer divisors of 156 that completely divides 156 are.
1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
Divisors of 747 :
The positive integer divisors of 747 that completely divides 747 are.
1, 3, 9, 83, 249, 747
GCD of numbers is the greatest common divisor
So, the GCD (665, 120, 156, 747) = 1.
Given numbers are 665, 120, 156, 747
The list of prime factors of all numbers are
Prime factors of 665 are 5 x 7 x 19
Prime factors of 120 are 2 x 2 x 2 x 3 x 5
Prime factors of 156 are 2 x 2 x 3 x 13
Prime factors of 747 are 3 x 3 x 83
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 665, 120, 156, 747
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(665, 120) = 15960
GCD(665, 120) = ( 665 x 120 ) / 15960
= 665 / 120
= 665
Step2:
LCM(5, 156) = 780
GCD(5, 156) = ( 5 x 156 ) / 780
= 5 / 156
= 5
Step3:
LCM(1, 747) = 747
GCD(1, 747) = ( 1 x 747 ) / 747
= 1 / 747
= 1
So, Greatest Common Divisor of 665, 120, 156, 747 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 665, 120, 156, 747
The greatest common divisor of numbers 665, 120, 156, 747 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 665, 120, 156, 747 is 1.
1. What is the GCD of 665, 120, 156, 747?
GCD of given numbers 665, 120, 156, 747 is 1
2. How to calculate the greatest common divisor of 665, 120, 156, 747?
We can find the highest common divisor of 665, 120, 156, 747 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 665, 120, 156, 747 i.e 1.
3. How can I use the GCD of 665, 120, 156, 747Calculator?
Out the numbers 665, 120, 156, 747 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.