Online GCD Calculator is useful to find the GCD of 212, 138, 448, 784 quickly. Get the easiest ways to solve the greatest common divisor of 212, 138, 448, 784 i.e 2 in different methods as follows.
Given Input numbers are 212, 138, 448, 784
In the factoring method, we have to find the divisors of all numbers
Divisors of 212 :
The positive integer divisors of 212 that completely divides 212 are.
1, 2, 4, 53, 106, 212
Divisors of 138 :
The positive integer divisors of 138 that completely divides 138 are.
1, 2, 3, 6, 23, 46, 69, 138
Divisors of 448 :
The positive integer divisors of 448 that completely divides 448 are.
1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448
Divisors of 784 :
The positive integer divisors of 784 that completely divides 784 are.
1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
GCD of numbers is the greatest common divisor
So, the GCD (212, 138, 448, 784) = 2.
Given numbers are 212, 138, 448, 784
The list of prime factors of all numbers are
Prime factors of 212 are 2 x 2 x 53
Prime factors of 138 are 2 x 3 x 23
Prime factors of 448 are 2 x 2 x 2 x 2 x 2 x 2 x 7
Prime factors of 784 are 2 x 2 x 2 x 2 x 7 x 7
The highest common occurrence is 21
Therefore, GCD of 212, 138, 448, 784 is 2.
Given numbers are 212, 138, 448, 784
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(212, 138) = 14628
GCD(212, 138) = ( 212 x 138 ) / 14628
= 212 / 138
= 212
Step2:
LCM(2, 448) = 448
GCD(2, 448) = ( 2 x 448 ) / 448
= 2 / 448
= 2
Step3:
LCM(2, 784) = 784
GCD(2, 784) = ( 2 x 784 ) / 784
= 2 / 784
= 2
So, Greatest Common Divisor of 212, 138, 448, 784 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 212, 138, 448, 784
The greatest common divisor of numbers 212, 138, 448, 784 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 212, 138, 448, 784 is 2.
1. What is the GCD of 212, 138, 448, 784?
GCD of given numbers 212, 138, 448, 784 is 2
2. How to calculate the greatest common divisor of 212, 138, 448, 784?
We can find the highest common divisor of 212, 138, 448, 784 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 212, 138, 448, 784 i.e 2.
3. How can I use the GCD of 212, 138, 448, 784Calculator?
Out the numbers 212, 138, 448, 784 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.