Online GCD Calculator is useful to find the GCD of 648, 921, 678, 772 quickly. Get the easiest ways to solve the greatest common divisor of 648, 921, 678, 772 i.e 1 in different methods as follows.
Given Input numbers are 648, 921, 678, 772
In the factoring method, we have to find the divisors of all numbers
Divisors of 648 :
The positive integer divisors of 648 that completely divides 648 are.
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648
Divisors of 921 :
The positive integer divisors of 921 that completely divides 921 are.
1, 3, 307, 921
Divisors of 678 :
The positive integer divisors of 678 that completely divides 678 are.
1, 2, 3, 6, 113, 226, 339, 678
Divisors of 772 :
The positive integer divisors of 772 that completely divides 772 are.
1, 2, 4, 193, 386, 772
GCD of numbers is the greatest common divisor
So, the GCD (648, 921, 678, 772) = 1.
Given numbers are 648, 921, 678, 772
The list of prime factors of all numbers are
Prime factors of 648 are 2 x 2 x 2 x 3 x 3 x 3 x 3
Prime factors of 921 are 3 x 307
Prime factors of 678 are 2 x 3 x 113
Prime factors of 772 are 2 x 2 x 193
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 648, 921, 678, 772
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(648, 921) = 198936
GCD(648, 921) = ( 648 x 921 ) / 198936
= 648 / 921
= 648
Step2:
LCM(3, 678) = 678
GCD(3, 678) = ( 3 x 678 ) / 678
= 3 / 678
= 3
Step3:
LCM(3, 772) = 2316
GCD(3, 772) = ( 3 x 772 ) / 2316
= 3 / 772
= 3
So, Greatest Common Divisor of 648, 921, 678, 772 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 648, 921, 678, 772
The greatest common divisor of numbers 648, 921, 678, 772 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 648, 921, 678, 772 is 1.
1. What is the GCD of 648, 921, 678, 772?
GCD of given numbers 648, 921, 678, 772 is 1
2. How to calculate the greatest common divisor of 648, 921, 678, 772?
We can find the highest common divisor of 648, 921, 678, 772 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 648, 921, 678, 772 i.e 1.
3. How can I use the GCD of 648, 921, 678, 772Calculator?
Out the numbers 648, 921, 678, 772 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.