Online GCD Calculator is useful to find the GCD of 490, 189, 178 quickly. Get the easiest ways to solve the greatest common divisor of 490, 189, 178 i.e 1 in different methods as follows.
Given Input numbers are 490, 189, 178
In the factoring method, we have to find the divisors of all numbers
Divisors of 490 :
The positive integer divisors of 490 that completely divides 490 are.
1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
Divisors of 189 :
The positive integer divisors of 189 that completely divides 189 are.
1, 3, 7, 9, 21, 27, 63, 189
Divisors of 178 :
The positive integer divisors of 178 that completely divides 178 are.
1, 2, 89, 178
GCD of numbers is the greatest common divisor
So, the GCD (490, 189, 178) = 1.
Given numbers are 490, 189, 178
The list of prime factors of all numbers are
Prime factors of 490 are 2 x 5 x 7 x 7
Prime factors of 189 are 3 x 3 x 3 x 7
Prime factors of 178 are 2 x 89
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 490, 189, 178
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(490, 189) = 13230
GCD(490, 189) = ( 490 x 189 ) / 13230
= 490 / 189
= 490
Step2:
LCM(7, 178) = 1246
GCD(7, 178) = ( 7 x 178 ) / 1246
= 7 / 178
= 7
So, Greatest Common Divisor of 490, 189, 178 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 490, 189, 178
The greatest common divisor of numbers 490, 189, 178 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 490, 189, 178 is 1.
1. What is the GCD of 490, 189, 178?
GCD of given numbers 490, 189, 178 is 1
2. How to calculate the greatest common divisor of 490, 189, 178?
We can find the highest common divisor of 490, 189, 178 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 490, 189, 178 i.e 1.
3. How can I use the GCD of 490, 189, 178Calculator?
Out the numbers 490, 189, 178 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.