Online GCD Calculator is useful to find the GCD of 780, 427, 423, 842 quickly. Get the easiest ways to solve the greatest common divisor of 780, 427, 423, 842 i.e 1 in different methods as follows.
Given Input numbers are 780, 427, 423, 842
In the factoring method, we have to find the divisors of all numbers
Divisors of 780 :
The positive integer divisors of 780 that completely divides 780 are.
1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
Divisors of 427 :
The positive integer divisors of 427 that completely divides 427 are.
1, 7, 61, 427
Divisors of 423 :
The positive integer divisors of 423 that completely divides 423 are.
1, 3, 9, 47, 141, 423
Divisors of 842 :
The positive integer divisors of 842 that completely divides 842 are.
1, 2, 421, 842
GCD of numbers is the greatest common divisor
So, the GCD (780, 427, 423, 842) = 1.
Given numbers are 780, 427, 423, 842
The list of prime factors of all numbers are
Prime factors of 780 are 2 x 2 x 3 x 5 x 13
Prime factors of 427 are 7 x 61
Prime factors of 423 are 3 x 3 x 47
Prime factors of 842 are 2 x 421
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 780, 427, 423, 842
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(780, 427) = 333060
GCD(780, 427) = ( 780 x 427 ) / 333060
= 780 / 427
= 780
Step2:
LCM(1, 423) = 423
GCD(1, 423) = ( 1 x 423 ) / 423
= 1 / 423
= 1
Step3:
LCM(1, 842) = 842
GCD(1, 842) = ( 1 x 842 ) / 842
= 1 / 842
= 1
So, Greatest Common Divisor of 780, 427, 423, 842 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 780, 427, 423, 842
The greatest common divisor of numbers 780, 427, 423, 842 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 780, 427, 423, 842 is 1.
1. What is the GCD of 780, 427, 423, 842?
GCD of given numbers 780, 427, 423, 842 is 1
2. How to calculate the greatest common divisor of 780, 427, 423, 842?
We can find the highest common divisor of 780, 427, 423, 842 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 780, 427, 423, 842 i.e 1.
3. How can I use the GCD of 780, 427, 423, 842Calculator?
Out the numbers 780, 427, 423, 842 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.