Online GCD Calculator is useful to find the GCD of 756, 168, 147 quickly. Get the easiest ways to solve the greatest common divisor of 756, 168, 147 i.e 21 in different methods as follows.
Given Input numbers are 756, 168, 147
In the factoring method, we have to find the divisors of all numbers
Divisors of 756 :
The positive integer divisors of 756 that completely divides 756 are.
1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
Divisors of 168 :
The positive integer divisors of 168 that completely divides 168 are.
1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
Divisors of 147 :
The positive integer divisors of 147 that completely divides 147 are.
1, 3, 7, 21, 49, 147
GCD of numbers is the greatest common divisor
So, the GCD (756, 168, 147) = 21.
Given numbers are 756, 168, 147
The list of prime factors of all numbers are
Prime factors of 756 are 2 x 2 x 3 x 3 x 3 x 7
Prime factors of 168 are 2 x 2 x 2 x 3 x 7
Prime factors of 147 are 3 x 7 x 7
The highest common occurrence is 31 x 71
Therefore, GCD of 756, 168, 147 is 21.
Given numbers are 756, 168, 147
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(756, 168) = 1512
GCD(756, 168) = ( 756 x 168 ) / 1512
= 756 / 168
= 756
Step2:
LCM(84, 147) = 588
GCD(84, 147) = ( 84 x 147 ) / 588
= 84 / 147
= 84
So, Greatest Common Divisor of 756, 168, 147 is 21
Here are some samples of GCD of Numbers calculations.
Given numbers are 756, 168, 147
The greatest common divisor of numbers 756, 168, 147 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 756, 168, 147 is 21.
1. What is the GCD of 756, 168, 147?
GCD of given numbers 756, 168, 147 is 21
2. How to calculate the greatest common divisor of 756, 168, 147?
We can find the highest common divisor of 756, 168, 147 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 756, 168, 147 i.e 21.
3. How can I use the GCD of 756, 168, 147Calculator?
Out the numbers 756, 168, 147 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.