Online GCD Calculator is useful to find the GCD of 420, 165, 857, 419 quickly. Get the easiest ways to solve the greatest common divisor of 420, 165, 857, 419 i.e 1 in different methods as follows.
Given Input numbers are 420, 165, 857, 419
In the factoring method, we have to find the divisors of all numbers
Divisors of 420 :
The positive integer divisors of 420 that completely divides 420 are.
1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
Divisors of 165 :
The positive integer divisors of 165 that completely divides 165 are.
1, 3, 5, 11, 15, 33, 55, 165
Divisors of 857 :
The positive integer divisors of 857 that completely divides 857 are.
1, 857
Divisors of 419 :
The positive integer divisors of 419 that completely divides 419 are.
1, 419
GCD of numbers is the greatest common divisor
So, the GCD (420, 165, 857, 419) = 1.
Given numbers are 420, 165, 857, 419
The list of prime factors of all numbers are
Prime factors of 420 are 2 x 2 x 3 x 5 x 7
Prime factors of 165 are 3 x 5 x 11
Prime factors of 857 are 857
Prime factors of 419 are 419
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 420, 165, 857, 419
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(420, 165) = 4620
GCD(420, 165) = ( 420 x 165 ) / 4620
= 420 / 165
= 420
Step2:
LCM(15, 857) = 12855
GCD(15, 857) = ( 15 x 857 ) / 12855
= 15 / 857
= 15
Step3:
LCM(1, 419) = 419
GCD(1, 419) = ( 1 x 419 ) / 419
= 1 / 419
= 1
So, Greatest Common Divisor of 420, 165, 857, 419 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 420, 165, 857, 419
The greatest common divisor of numbers 420, 165, 857, 419 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 420, 165, 857, 419 is 1.
1. What is the GCD of 420, 165, 857, 419?
GCD of given numbers 420, 165, 857, 419 is 1
2. How to calculate the greatest common divisor of 420, 165, 857, 419?
We can find the highest common divisor of 420, 165, 857, 419 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 420, 165, 857, 419 i.e 1.
3. How can I use the GCD of 420, 165, 857, 419Calculator?
Out the numbers 420, 165, 857, 419 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.