Online GCD Calculator is useful to find the GCD of 398, 149, 210, 664 quickly. Get the easiest ways to solve the greatest common divisor of 398, 149, 210, 664 i.e 1 in different methods as follows.
Given Input numbers are 398, 149, 210, 664
In the factoring method, we have to find the divisors of all numbers
Divisors of 398 :
The positive integer divisors of 398 that completely divides 398 are.
1, 2, 199, 398
Divisors of 149 :
The positive integer divisors of 149 that completely divides 149 are.
1, 149
Divisors of 210 :
The positive integer divisors of 210 that completely divides 210 are.
1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
Divisors of 664 :
The positive integer divisors of 664 that completely divides 664 are.
1, 2, 4, 8, 83, 166, 332, 664
GCD of numbers is the greatest common divisor
So, the GCD (398, 149, 210, 664) = 1.
Given numbers are 398, 149, 210, 664
The list of prime factors of all numbers are
Prime factors of 398 are 2 x 199
Prime factors of 149 are 149
Prime factors of 210 are 2 x 3 x 5 x 7
Prime factors of 664 are 2 x 2 x 2 x 83
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 398, 149, 210, 664
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(398, 149) = 59302
GCD(398, 149) = ( 398 x 149 ) / 59302
= 398 / 149
= 398
Step2:
LCM(1, 210) = 210
GCD(1, 210) = ( 1 x 210 ) / 210
= 1 / 210
= 1
Step3:
LCM(1, 664) = 664
GCD(1, 664) = ( 1 x 664 ) / 664
= 1 / 664
= 1
So, Greatest Common Divisor of 398, 149, 210, 664 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 398, 149, 210, 664
The greatest common divisor of numbers 398, 149, 210, 664 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 398, 149, 210, 664 is 1.
1. What is the GCD of 398, 149, 210, 664?
GCD of given numbers 398, 149, 210, 664 is 1
2. How to calculate the greatest common divisor of 398, 149, 210, 664?
We can find the highest common divisor of 398, 149, 210, 664 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 398, 149, 210, 664 i.e 1.
3. How can I use the GCD of 398, 149, 210, 664Calculator?
Out the numbers 398, 149, 210, 664 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.