Online GCD Calculator is useful to find the GCD of 158, 290, 20 quickly. Get the easiest ways to solve the greatest common divisor of 158, 290, 20 i.e 2 in different methods as follows.
Given Input numbers are 158, 290, 20
In the factoring method, we have to find the divisors of all numbers
Divisors of 158 :
The positive integer divisors of 158 that completely divides 158 are.
1, 2, 79, 158
Divisors of 290 :
The positive integer divisors of 290 that completely divides 290 are.
1, 2, 5, 10, 29, 58, 145, 290
Divisors of 20 :
The positive integer divisors of 20 that completely divides 20 are.
1, 2, 4, 5, 10, 20
GCD of numbers is the greatest common divisor
So, the GCD (158, 290, 20) = 2.
Given numbers are 158, 290, 20
The list of prime factors of all numbers are
Prime factors of 158 are 2 x 79
Prime factors of 290 are 2 x 5 x 29
Prime factors of 20 are 2 x 2 x 5
The highest common occurrence is 21
Therefore, GCD of 158, 290, 20 is 2.
Given numbers are 158, 290, 20
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(158, 290) = 22910
GCD(158, 290) = ( 158 x 290 ) / 22910
= 158 / 290
= 158
Step2:
LCM(2, 20) = 20
GCD(2, 20) = ( 2 x 20 ) / 20
= 2 / 20
= 2
So, Greatest Common Divisor of 158, 290, 20 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 158, 290, 20
The greatest common divisor of numbers 158, 290, 20 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 158, 290, 20 is 2.
1. What is the GCD of 158, 290, 20?
GCD of given numbers 158, 290, 20 is 2
2. How to calculate the greatest common divisor of 158, 290, 20?
We can find the highest common divisor of 158, 290, 20 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 158, 290, 20 i.e 2.
3. How can I use the GCD of 158, 290, 20Calculator?
Out the numbers 158, 290, 20 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.