Online GCD Calculator is useful to find the GCD of 391, 721, 787, 994 quickly. Get the easiest ways to solve the greatest common divisor of 391, 721, 787, 994 i.e 1 in different methods as follows.
Given Input numbers are 391, 721, 787, 994
In the factoring method, we have to find the divisors of all numbers
Divisors of 391 :
The positive integer divisors of 391 that completely divides 391 are.
1, 17, 23, 391
Divisors of 721 :
The positive integer divisors of 721 that completely divides 721 are.
1, 7, 103, 721
Divisors of 787 :
The positive integer divisors of 787 that completely divides 787 are.
1, 787
Divisors of 994 :
The positive integer divisors of 994 that completely divides 994 are.
1, 2, 7, 14, 71, 142, 497, 994
GCD of numbers is the greatest common divisor
So, the GCD (391, 721, 787, 994) = 1.
Given numbers are 391, 721, 787, 994
The list of prime factors of all numbers are
Prime factors of 391 are 17 x 23
Prime factors of 721 are 7 x 103
Prime factors of 787 are 787
Prime factors of 994 are 2 x 7 x 71
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 391, 721, 787, 994
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(391, 721) = 281911
GCD(391, 721) = ( 391 x 721 ) / 281911
= 391 / 721
= 391
Step2:
LCM(1, 787) = 787
GCD(1, 787) = ( 1 x 787 ) / 787
= 1 / 787
= 1
Step3:
LCM(1, 994) = 994
GCD(1, 994) = ( 1 x 994 ) / 994
= 1 / 994
= 1
So, Greatest Common Divisor of 391, 721, 787, 994 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 391, 721, 787, 994
The greatest common divisor of numbers 391, 721, 787, 994 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 391, 721, 787, 994 is 1.
1. What is the GCD of 391, 721, 787, 994?
GCD of given numbers 391, 721, 787, 994 is 1
2. How to calculate the greatest common divisor of 391, 721, 787, 994?
We can find the highest common divisor of 391, 721, 787, 994 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 391, 721, 787, 994 i.e 1.
3. How can I use the GCD of 391, 721, 787, 994Calculator?
Out the numbers 391, 721, 787, 994 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.