Online GCD Calculator is useful to find the GCD of 642, 364, 809, 434 quickly. Get the easiest ways to solve the greatest common divisor of 642, 364, 809, 434 i.e 1 in different methods as follows.
Given Input numbers are 642, 364, 809, 434
In the factoring method, we have to find the divisors of all numbers
Divisors of 642 :
The positive integer divisors of 642 that completely divides 642 are.
1, 2, 3, 6, 107, 214, 321, 642
Divisors of 364 :
The positive integer divisors of 364 that completely divides 364 are.
1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364
Divisors of 809 :
The positive integer divisors of 809 that completely divides 809 are.
1, 809
Divisors of 434 :
The positive integer divisors of 434 that completely divides 434 are.
1, 2, 7, 14, 31, 62, 217, 434
GCD of numbers is the greatest common divisor
So, the GCD (642, 364, 809, 434) = 1.
Given numbers are 642, 364, 809, 434
The list of prime factors of all numbers are
Prime factors of 642 are 2 x 3 x 107
Prime factors of 364 are 2 x 2 x 7 x 13
Prime factors of 809 are 809
Prime factors of 434 are 2 x 7 x 31
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 642, 364, 809, 434
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(642, 364) = 116844
GCD(642, 364) = ( 642 x 364 ) / 116844
= 642 / 364
= 642
Step2:
LCM(2, 809) = 1618
GCD(2, 809) = ( 2 x 809 ) / 1618
= 2 / 809
= 2
Step3:
LCM(1, 434) = 434
GCD(1, 434) = ( 1 x 434 ) / 434
= 1 / 434
= 1
So, Greatest Common Divisor of 642, 364, 809, 434 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 642, 364, 809, 434
The greatest common divisor of numbers 642, 364, 809, 434 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 642, 364, 809, 434 is 1.
1. What is the GCD of 642, 364, 809, 434?
GCD of given numbers 642, 364, 809, 434 is 1
2. How to calculate the greatest common divisor of 642, 364, 809, 434?
We can find the highest common divisor of 642, 364, 809, 434 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 642, 364, 809, 434 i.e 1.
3. How can I use the GCD of 642, 364, 809, 434Calculator?
Out the numbers 642, 364, 809, 434 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.