Online GCD Calculator is useful to find the GCD of 972, 156, 172 quickly. Get the easiest ways to solve the greatest common divisor of 972, 156, 172 i.e 4 in different methods as follows.
Given Input numbers are 972, 156, 172
In the factoring method, we have to find the divisors of all numbers
Divisors of 972 :
The positive integer divisors of 972 that completely divides 972 are.
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972
Divisors of 156 :
The positive integer divisors of 156 that completely divides 156 are.
1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
Divisors of 172 :
The positive integer divisors of 172 that completely divides 172 are.
1, 2, 4, 43, 86, 172
GCD of numbers is the greatest common divisor
So, the GCD (972, 156, 172) = 4.
Given numbers are 972, 156, 172
The list of prime factors of all numbers are
Prime factors of 972 are 2 x 2 x 3 x 3 x 3 x 3 x 3
Prime factors of 156 are 2 x 2 x 3 x 13
Prime factors of 172 are 2 x 2 x 43
The highest common occurrence is 22
Therefore, GCD of 972, 156, 172 is 4.
Given numbers are 972, 156, 172
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(972, 156) = 12636
GCD(972, 156) = ( 972 x 156 ) / 12636
= 972 / 156
= 972
Step2:
LCM(12, 172) = 516
GCD(12, 172) = ( 12 x 172 ) / 516
= 12 / 172
= 12
So, Greatest Common Divisor of 972, 156, 172 is 4
Here are some samples of GCD of Numbers calculations.
Given numbers are 972, 156, 172
The greatest common divisor of numbers 972, 156, 172 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 972, 156, 172 is 4.
1. What is the GCD of 972, 156, 172?
GCD of given numbers 972, 156, 172 is 4
2. How to calculate the greatest common divisor of 972, 156, 172?
We can find the highest common divisor of 972, 156, 172 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 972, 156, 172 i.e 4.
3. How can I use the GCD of 972, 156, 172Calculator?
Out the numbers 972, 156, 172 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.