Online GCD Calculator is useful to find the GCD of 777, 731, 121, 644 quickly. Get the easiest ways to solve the greatest common divisor of 777, 731, 121, 644 i.e 1 in different methods as follows.
Given Input numbers are 777, 731, 121, 644
In the factoring method, we have to find the divisors of all numbers
Divisors of 777 :
The positive integer divisors of 777 that completely divides 777 are.
1, 3, 7, 21, 37, 111, 259, 777
Divisors of 731 :
The positive integer divisors of 731 that completely divides 731 are.
1, 17, 43, 731
Divisors of 121 :
The positive integer divisors of 121 that completely divides 121 are.
1, 11, 121
Divisors of 644 :
The positive integer divisors of 644 that completely divides 644 are.
1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
GCD of numbers is the greatest common divisor
So, the GCD (777, 731, 121, 644) = 1.
Given numbers are 777, 731, 121, 644
The list of prime factors of all numbers are
Prime factors of 777 are 3 x 7 x 37
Prime factors of 731 are 17 x 43
Prime factors of 121 are 11 x 11
Prime factors of 644 are 2 x 2 x 7 x 23
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 777, 731, 121, 644
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(777, 731) = 567987
GCD(777, 731) = ( 777 x 731 ) / 567987
= 777 / 731
= 777
Step2:
LCM(1, 121) = 121
GCD(1, 121) = ( 1 x 121 ) / 121
= 1 / 121
= 1
Step3:
LCM(1, 644) = 644
GCD(1, 644) = ( 1 x 644 ) / 644
= 1 / 644
= 1
So, Greatest Common Divisor of 777, 731, 121, 644 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 777, 731, 121, 644
The greatest common divisor of numbers 777, 731, 121, 644 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 777, 731, 121, 644 is 1.
1. What is the GCD of 777, 731, 121, 644?
GCD of given numbers 777, 731, 121, 644 is 1
2. How to calculate the greatest common divisor of 777, 731, 121, 644?
We can find the highest common divisor of 777, 731, 121, 644 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 777, 731, 121, 644 i.e 1.
3. How can I use the GCD of 777, 731, 121, 644Calculator?
Out the numbers 777, 731, 121, 644 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.