Online GCD Calculator is useful to find the GCD of 447, 165, 465, 645 quickly. Get the easiest ways to solve the greatest common divisor of 447, 165, 465, 645 i.e 3 in different methods as follows.
Given Input numbers are 447, 165, 465, 645
In the factoring method, we have to find the divisors of all numbers
Divisors of 447 :
The positive integer divisors of 447 that completely divides 447 are.
1, 3, 149, 447
Divisors of 165 :
The positive integer divisors of 165 that completely divides 165 are.
1, 3, 5, 11, 15, 33, 55, 165
Divisors of 465 :
The positive integer divisors of 465 that completely divides 465 are.
1, 3, 5, 15, 31, 93, 155, 465
Divisors of 645 :
The positive integer divisors of 645 that completely divides 645 are.
1, 3, 5, 15, 43, 129, 215, 645
GCD of numbers is the greatest common divisor
So, the GCD (447, 165, 465, 645) = 3.
Given numbers are 447, 165, 465, 645
The list of prime factors of all numbers are
Prime factors of 447 are 3 x 149
Prime factors of 165 are 3 x 5 x 11
Prime factors of 465 are 3 x 5 x 31
Prime factors of 645 are 3 x 5 x 43
The highest common occurrence is 31
Therefore, GCD of 447, 165, 465, 645 is 3.
Given numbers are 447, 165, 465, 645
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(447, 165) = 24585
GCD(447, 165) = ( 447 x 165 ) / 24585
= 447 / 165
= 447
Step2:
LCM(3, 465) = 465
GCD(3, 465) = ( 3 x 465 ) / 465
= 3 / 465
= 3
Step3:
LCM(3, 645) = 645
GCD(3, 645) = ( 3 x 645 ) / 645
= 3 / 645
= 3
So, Greatest Common Divisor of 447, 165, 465, 645 is 3
Here are some samples of GCD of Numbers calculations.
Given numbers are 447, 165, 465, 645
The greatest common divisor of numbers 447, 165, 465, 645 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 447, 165, 465, 645 is 3.
1. What is the GCD of 447, 165, 465, 645?
GCD of given numbers 447, 165, 465, 645 is 3
2. How to calculate the greatest common divisor of 447, 165, 465, 645?
We can find the highest common divisor of 447, 165, 465, 645 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 447, 165, 465, 645 i.e 3.
3. How can I use the GCD of 447, 165, 465, 645Calculator?
Out the numbers 447, 165, 465, 645 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.