Online GCD Calculator is useful to find the GCD of 721, 674, 309, 987 quickly. Get the easiest ways to solve the greatest common divisor of 721, 674, 309, 987 i.e 1 in different methods as follows.
Given Input numbers are 721, 674, 309, 987
In the factoring method, we have to find the divisors of all numbers
Divisors of 721 :
The positive integer divisors of 721 that completely divides 721 are.
1, 7, 103, 721
Divisors of 674 :
The positive integer divisors of 674 that completely divides 674 are.
1, 2, 337, 674
Divisors of 309 :
The positive integer divisors of 309 that completely divides 309 are.
1, 3, 103, 309
Divisors of 987 :
The positive integer divisors of 987 that completely divides 987 are.
1, 3, 7, 21, 47, 141, 329, 987
GCD of numbers is the greatest common divisor
So, the GCD (721, 674, 309, 987) = 1.
Given numbers are 721, 674, 309, 987
The list of prime factors of all numbers are
Prime factors of 721 are 7 x 103
Prime factors of 674 are 2 x 337
Prime factors of 309 are 3 x 103
Prime factors of 987 are 3 x 7 x 47
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 721, 674, 309, 987
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(721, 674) = 485954
GCD(721, 674) = ( 721 x 674 ) / 485954
= 721 / 674
= 721
Step2:
LCM(1, 309) = 309
GCD(1, 309) = ( 1 x 309 ) / 309
= 1 / 309
= 1
Step3:
LCM(1, 987) = 987
GCD(1, 987) = ( 1 x 987 ) / 987
= 1 / 987
= 1
So, Greatest Common Divisor of 721, 674, 309, 987 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 721, 674, 309, 987
The greatest common divisor of numbers 721, 674, 309, 987 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 721, 674, 309, 987 is 1.
1. What is the GCD of 721, 674, 309, 987?
GCD of given numbers 721, 674, 309, 987 is 1
2. How to calculate the greatest common divisor of 721, 674, 309, 987?
We can find the highest common divisor of 721, 674, 309, 987 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 721, 674, 309, 987 i.e 1.
3. How can I use the GCD of 721, 674, 309, 987Calculator?
Out the numbers 721, 674, 309, 987 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.