Online GCD Calculator is useful to find the GCD of 820, 247, 425, 789 quickly. Get the easiest ways to solve the greatest common divisor of 820, 247, 425, 789 i.e 1 in different methods as follows.
Given Input numbers are 820, 247, 425, 789
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 247 :
The positive integer divisors of 247 that completely divides 247 are.
1, 13, 19, 247
Divisors of 425 :
The positive integer divisors of 425 that completely divides 425 are.
1, 5, 17, 25, 85, 425
Divisors of 789 :
The positive integer divisors of 789 that completely divides 789 are.
1, 3, 263, 789
GCD of numbers is the greatest common divisor
So, the GCD (820, 247, 425, 789) = 1.
Given numbers are 820, 247, 425, 789
The list of prime factors of all numbers are
Prime factors of 820 are 2 x 2 x 5 x 41
Prime factors of 247 are 13 x 19
Prime factors of 425 are 5 x 5 x 17
Prime factors of 789 are 3 x 263
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 820, 247, 425, 789
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(820, 247) = 202540
GCD(820, 247) = ( 820 x 247 ) / 202540
= 820 / 247
= 820
Step2:
LCM(1, 425) = 425
GCD(1, 425) = ( 1 x 425 ) / 425
= 1 / 425
= 1
Step3:
LCM(1, 789) = 789
GCD(1, 789) = ( 1 x 789 ) / 789
= 1 / 789
= 1
So, Greatest Common Divisor of 820, 247, 425, 789 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 820, 247, 425, 789
The greatest common divisor of numbers 820, 247, 425, 789 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 820, 247, 425, 789 is 1.
1. What is the GCD of 820, 247, 425, 789?
GCD of given numbers 820, 247, 425, 789 is 1
2. How to calculate the greatest common divisor of 820, 247, 425, 789?
We can find the highest common divisor of 820, 247, 425, 789 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, 247, 425, 789 i.e 1.
3. How can I use the GCD of 820, 247, 425, 789Calculator?
Out the numbers 820, 247, 425, 789 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.