Online GCD Calculator is useful to find the GCD of 988, 961, 345, 390 quickly. Get the easiest ways to solve the greatest common divisor of 988, 961, 345, 390 i.e 1 in different methods as follows.
Given Input numbers are 988, 961, 345, 390
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 961 :
The positive integer divisors of 961 that completely divides 961 are.
1, 31, 961
Divisors of 345 :
The positive integer divisors of 345 that completely divides 345 are.
1, 3, 5, 15, 23, 69, 115, 345
Divisors of 390 :
The positive integer divisors of 390 that completely divides 390 are.
1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
GCD of numbers is the greatest common divisor
So, the GCD (988, 961, 345, 390) = 1.
Given numbers are 988, 961, 345, 390
The list of prime factors of all numbers are
Prime factors of 988 are 2 x 2 x 13 x 19
Prime factors of 961 are 31 x 31
Prime factors of 345 are 3 x 5 x 23
Prime factors of 390 are 2 x 3 x 5 x 13
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 988, 961, 345, 390
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(988, 961) = 949468
GCD(988, 961) = ( 988 x 961 ) / 949468
= 988 / 961
= 988
Step2:
LCM(1, 345) = 345
GCD(1, 345) = ( 1 x 345 ) / 345
= 1 / 345
= 1
Step3:
LCM(1, 390) = 390
GCD(1, 390) = ( 1 x 390 ) / 390
= 1 / 390
= 1
So, Greatest Common Divisor of 988, 961, 345, 390 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 988, 961, 345, 390
The greatest common divisor of numbers 988, 961, 345, 390 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 988, 961, 345, 390 is 1.
1. What is the GCD of 988, 961, 345, 390?
GCD of given numbers 988, 961, 345, 390 is 1
2. How to calculate the greatest common divisor of 988, 961, 345, 390?
We can find the highest common divisor of 988, 961, 345, 390 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, 961, 345, 390 i.e 1.
3. How can I use the GCD of 988, 961, 345, 390Calculator?
Out the numbers 988, 961, 345, 390 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.