Online GCD Calculator is useful to find the GCD of 145, 220, 165, 423 quickly. Get the easiest ways to solve the greatest common divisor of 145, 220, 165, 423 i.e 1 in different methods as follows.
Given Input numbers are 145, 220, 165, 423
In the factoring method, we have to find the divisors of all numbers
Divisors of 145 :
The positive integer divisors of 145 that completely divides 145 are.
1, 5, 29, 145
Divisors of 220 :
The positive integer divisors of 220 that completely divides 220 are.
1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
Divisors of 165 :
The positive integer divisors of 165 that completely divides 165 are.
1, 3, 5, 11, 15, 33, 55, 165
Divisors of 423 :
The positive integer divisors of 423 that completely divides 423 are.
1, 3, 9, 47, 141, 423
GCD of numbers is the greatest common divisor
So, the GCD (145, 220, 165, 423) = 1.
Given numbers are 145, 220, 165, 423
The list of prime factors of all numbers are
Prime factors of 145 are 5 x 29
Prime factors of 220 are 2 x 2 x 5 x 11
Prime factors of 165 are 3 x 5 x 11
Prime factors of 423 are 3 x 3 x 47
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 145, 220, 165, 423
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(145, 220) = 6380
GCD(145, 220) = ( 145 x 220 ) / 6380
= 145 / 220
= 145
Step2:
LCM(5, 165) = 165
GCD(5, 165) = ( 5 x 165 ) / 165
= 5 / 165
= 5
Step3:
LCM(5, 423) = 2115
GCD(5, 423) = ( 5 x 423 ) / 2115
= 5 / 423
= 5
So, Greatest Common Divisor of 145, 220, 165, 423 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 145, 220, 165, 423
The greatest common divisor of numbers 145, 220, 165, 423 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 145, 220, 165, 423 is 1.
1. What is the GCD of 145, 220, 165, 423?
GCD of given numbers 145, 220, 165, 423 is 1
2. How to calculate the greatest common divisor of 145, 220, 165, 423?
We can find the highest common divisor of 145, 220, 165, 423 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 145, 220, 165, 423 i.e 1.
3. How can I use the GCD of 145, 220, 165, 423Calculator?
Out the numbers 145, 220, 165, 423 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.