Online GCD Calculator is useful to find the GCD of 871, 490, 991 quickly. Get the easiest ways to solve the greatest common divisor of 871, 490, 991 i.e 1 in different methods as follows.
Given Input numbers are 871, 490, 991
In the factoring method, we have to find the divisors of all numbers
Divisors of 871 :
The positive integer divisors of 871 that completely divides 871 are.
1, 13, 67, 871
Divisors of 490 :
The positive integer divisors of 490 that completely divides 490 are.
1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
Divisors of 991 :
The positive integer divisors of 991 that completely divides 991 are.
1, 991
GCD of numbers is the greatest common divisor
So, the GCD (871, 490, 991) = 1.
Given numbers are 871, 490, 991
The list of prime factors of all numbers are
Prime factors of 871 are 13 x 67
Prime factors of 490 are 2 x 5 x 7 x 7
Prime factors of 991 are 991
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 871, 490, 991
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(871, 490) = 426790
GCD(871, 490) = ( 871 x 490 ) / 426790
= 871 / 490
= 871
Step2:
LCM(1, 991) = 991
GCD(1, 991) = ( 1 x 991 ) / 991
= 1 / 991
= 1
So, Greatest Common Divisor of 871, 490, 991 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 871, 490, 991
The greatest common divisor of numbers 871, 490, 991 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 871, 490, 991 is 1.
1. What is the GCD of 871, 490, 991?
GCD of given numbers 871, 490, 991 is 1
2. How to calculate the greatest common divisor of 871, 490, 991?
We can find the highest common divisor of 871, 490, 991 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 871, 490, 991 i.e 1.
3. How can I use the GCD of 871, 490, 991Calculator?
Out the numbers 871, 490, 991 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.