Online GCD Calculator is useful to find the GCD of 820, 981, 680, 251 quickly. Get the easiest ways to solve the greatest common divisor of 820, 981, 680, 251 i.e 1 in different methods as follows.
Given Input numbers are 820, 981, 680, 251
In the factoring method, we have to find the divisors of all numbers
Divisors of 820 :
The positive integer divisors of 820 that completely divides 820 are.
1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
Divisors of 981 :
The positive integer divisors of 981 that completely divides 981 are.
1, 3, 9, 109, 327, 981
Divisors of 680 :
The positive integer divisors of 680 that completely divides 680 are.
1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
Divisors of 251 :
The positive integer divisors of 251 that completely divides 251 are.
1, 251
GCD of numbers is the greatest common divisor
So, the GCD (820, 981, 680, 251) = 1.
Given numbers are 820, 981, 680, 251
The list of prime factors of all numbers are
Prime factors of 820 are 2 x 2 x 5 x 41
Prime factors of 981 are 3 x 3 x 109
Prime factors of 680 are 2 x 2 x 2 x 5 x 17
Prime factors of 251 are 251
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 820, 981, 680, 251
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(820, 981) = 804420
GCD(820, 981) = ( 820 x 981 ) / 804420
= 820 / 981
= 820
Step2:
LCM(1, 680) = 680
GCD(1, 680) = ( 1 x 680 ) / 680
= 1 / 680
= 1
Step3:
LCM(1, 251) = 251
GCD(1, 251) = ( 1 x 251 ) / 251
= 1 / 251
= 1
So, Greatest Common Divisor of 820, 981, 680, 251 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 820, 981, 680, 251
The greatest common divisor of numbers 820, 981, 680, 251 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 820, 981, 680, 251 is 1.
1. What is the GCD of 820, 981, 680, 251?
GCD of given numbers 820, 981, 680, 251 is 1
2. How to calculate the greatest common divisor of 820, 981, 680, 251?
We can find the highest common divisor of 820, 981, 680, 251 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 820, 981, 680, 251 i.e 1.
3. How can I use the GCD of 820, 981, 680, 251Calculator?
Out the numbers 820, 981, 680, 251 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.