Online GCD Calculator is useful to find the GCD of 988, 644, 788, 647 quickly. Get the easiest ways to solve the greatest common divisor of 988, 644, 788, 647 i.e 1 in different methods as follows.
Given Input numbers are 988, 644, 788, 647
In the factoring method, we have to find the divisors of all numbers
Divisors of 988 :
The positive integer divisors of 988 that completely divides 988 are.
1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
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
Divisors of 788 :
The positive integer divisors of 788 that completely divides 788 are.
1, 2, 4, 197, 394, 788
Divisors of 647 :
The positive integer divisors of 647 that completely divides 647 are.
1, 647
GCD of numbers is the greatest common divisor
So, the GCD (988, 644, 788, 647) = 1.
Given numbers are 988, 644, 788, 647
The list of prime factors of all numbers are
Prime factors of 988 are 2 x 2 x 13 x 19
Prime factors of 644 are 2 x 2 x 7 x 23
Prime factors of 788 are 2 x 2 x 197
Prime factors of 647 are 647
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 988, 644, 788, 647
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(988, 644) = 159068
GCD(988, 644) = ( 988 x 644 ) / 159068
= 988 / 644
= 988
Step2:
LCM(4, 788) = 788
GCD(4, 788) = ( 4 x 788 ) / 788
= 4 / 788
= 4
Step3:
LCM(4, 647) = 2588
GCD(4, 647) = ( 4 x 647 ) / 2588
= 4 / 647
= 4
So, Greatest Common Divisor of 988, 644, 788, 647 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 988, 644, 788, 647
The greatest common divisor of numbers 988, 644, 788, 647 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 988, 644, 788, 647 is 1.
1. What is the GCD of 988, 644, 788, 647?
GCD of given numbers 988, 644, 788, 647 is 1
2. How to calculate the greatest common divisor of 988, 644, 788, 647?
We can find the highest common divisor of 988, 644, 788, 647 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 988, 644, 788, 647 i.e 1.
3. How can I use the GCD of 988, 644, 788, 647Calculator?
Out the numbers 988, 644, 788, 647 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.