Online GCD Calculator is useful to find the GCD of 646, 972, 370, 166 quickly. Get the easiest ways to solve the greatest common divisor of 646, 972, 370, 166 i.e 2 in different methods as follows.
Given Input numbers are 646, 972, 370, 166
In the factoring method, we have to find the divisors of all numbers
Divisors of 646 :
The positive integer divisors of 646 that completely divides 646 are.
1, 2, 17, 19, 34, 38, 323, 646
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 370 :
The positive integer divisors of 370 that completely divides 370 are.
1, 2, 5, 10, 37, 74, 185, 370
Divisors of 166 :
The positive integer divisors of 166 that completely divides 166 are.
1, 2, 83, 166
GCD of numbers is the greatest common divisor
So, the GCD (646, 972, 370, 166) = 2.
Given numbers are 646, 972, 370, 166
The list of prime factors of all numbers are
Prime factors of 646 are 2 x 17 x 19
Prime factors of 972 are 2 x 2 x 3 x 3 x 3 x 3 x 3
Prime factors of 370 are 2 x 5 x 37
Prime factors of 166 are 2 x 83
The highest common occurrence is 21
Therefore, GCD of 646, 972, 370, 166 is 2.
Given numbers are 646, 972, 370, 166
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(646, 972) = 313956
GCD(646, 972) = ( 646 x 972 ) / 313956
= 646 / 972
= 646
Step2:
LCM(2, 370) = 370
GCD(2, 370) = ( 2 x 370 ) / 370
= 2 / 370
= 2
Step3:
LCM(2, 166) = 166
GCD(2, 166) = ( 2 x 166 ) / 166
= 2 / 166
= 2
So, Greatest Common Divisor of 646, 972, 370, 166 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 646, 972, 370, 166
The greatest common divisor of numbers 646, 972, 370, 166 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 646, 972, 370, 166 is 2.
1. What is the GCD of 646, 972, 370, 166?
GCD of given numbers 646, 972, 370, 166 is 2
2. How to calculate the greatest common divisor of 646, 972, 370, 166?
We can find the highest common divisor of 646, 972, 370, 166 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 646, 972, 370, 166 i.e 2.
3. How can I use the GCD of 646, 972, 370, 166Calculator?
Out the numbers 646, 972, 370, 166 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.