Online GCD Calculator is useful to find the GCD of 420, 284, 384, 378 quickly. Get the easiest ways to solve the greatest common divisor of 420, 284, 384, 378 i.e 2 in different methods as follows.
Given Input numbers are 420, 284, 384, 378
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 284 :
The positive integer divisors of 284 that completely divides 284 are.
1, 2, 4, 71, 142, 284
Divisors of 384 :
The positive integer divisors of 384 that completely divides 384 are.
1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 384
Divisors of 378 :
The positive integer divisors of 378 that completely divides 378 are.
1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
GCD of numbers is the greatest common divisor
So, the GCD (420, 284, 384, 378) = 2.
Given numbers are 420, 284, 384, 378
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 284 are 2 x 2 x 71
Prime factors of 384 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3
Prime factors of 378 are 2 x 3 x 3 x 3 x 7
The highest common occurrence is 21
Therefore, GCD of 420, 284, 384, 378 is 2.
Given numbers are 420, 284, 384, 378
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(420, 284) = 29820
GCD(420, 284) = ( 420 x 284 ) / 29820
= 420 / 284
= 420
Step2:
LCM(4, 384) = 384
GCD(4, 384) = ( 4 x 384 ) / 384
= 4 / 384
= 4
Step3:
LCM(4, 378) = 756
GCD(4, 378) = ( 4 x 378 ) / 756
= 4 / 378
= 4
So, Greatest Common Divisor of 420, 284, 384, 378 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 420, 284, 384, 378
The greatest common divisor of numbers 420, 284, 384, 378 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 420, 284, 384, 378 is 2.
1. What is the GCD of 420, 284, 384, 378?
GCD of given numbers 420, 284, 384, 378 is 2
2. How to calculate the greatest common divisor of 420, 284, 384, 378?
We can find the highest common divisor of 420, 284, 384, 378 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, 284, 384, 378 i.e 2.
3. How can I use the GCD of 420, 284, 384, 378Calculator?
Out the numbers 420, 284, 384, 378 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.