Online GCD Calculator is useful to find the GCD of 668, 117, 155, 980 quickly. Get the easiest ways to solve the greatest common divisor of 668, 117, 155, 980 i.e 1 in different methods as follows.
Given Input numbers are 668, 117, 155, 980
In the factoring method, we have to find the divisors of all numbers
Divisors of 668 :
The positive integer divisors of 668 that completely divides 668 are.
1, 2, 4, 167, 334, 668
Divisors of 117 :
The positive integer divisors of 117 that completely divides 117 are.
1, 3, 9, 13, 39, 117
Divisors of 155 :
The positive integer divisors of 155 that completely divides 155 are.
1, 5, 31, 155
Divisors of 980 :
The positive integer divisors of 980 that completely divides 980 are.
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
GCD of numbers is the greatest common divisor
So, the GCD (668, 117, 155, 980) = 1.
Given numbers are 668, 117, 155, 980
The list of prime factors of all numbers are
Prime factors of 668 are 2 x 2 x 167
Prime factors of 117 are 3 x 3 x 13
Prime factors of 155 are 5 x 31
Prime factors of 980 are 2 x 2 x 5 x 7 x 7
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 668, 117, 155, 980
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(668, 117) = 78156
GCD(668, 117) = ( 668 x 117 ) / 78156
= 668 / 117
= 668
Step2:
LCM(1, 155) = 155
GCD(1, 155) = ( 1 x 155 ) / 155
= 1 / 155
= 1
Step3:
LCM(1, 980) = 980
GCD(1, 980) = ( 1 x 980 ) / 980
= 1 / 980
= 1
So, Greatest Common Divisor of 668, 117, 155, 980 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 668, 117, 155, 980
The greatest common divisor of numbers 668, 117, 155, 980 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 668, 117, 155, 980 is 1.
1. What is the GCD of 668, 117, 155, 980?
GCD of given numbers 668, 117, 155, 980 is 1
2. How to calculate the greatest common divisor of 668, 117, 155, 980?
We can find the highest common divisor of 668, 117, 155, 980 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 668, 117, 155, 980 i.e 1.
3. How can I use the GCD of 668, 117, 155, 980Calculator?
Out the numbers 668, 117, 155, 980 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.