Online GCD Calculator is useful to find the GCD of 130, 980, 679, 643 quickly. Get the easiest ways to solve the greatest common divisor of 130, 980, 679, 643 i.e 1 in different methods as follows.
Given Input numbers are 130, 980, 679, 643
In the factoring method, we have to find the divisors of all numbers
Divisors of 130 :
The positive integer divisors of 130 that completely divides 130 are.
1, 2, 5, 10, 13, 26, 65, 130
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
Divisors of 679 :
The positive integer divisors of 679 that completely divides 679 are.
1, 7, 97, 679
Divisors of 643 :
The positive integer divisors of 643 that completely divides 643 are.
1, 643
GCD of numbers is the greatest common divisor
So, the GCD (130, 980, 679, 643) = 1.
Given numbers are 130, 980, 679, 643
The list of prime factors of all numbers are
Prime factors of 130 are 2 x 5 x 13
Prime factors of 980 are 2 x 2 x 5 x 7 x 7
Prime factors of 679 are 7 x 97
Prime factors of 643 are 643
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 130, 980, 679, 643
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(130, 980) = 12740
GCD(130, 980) = ( 130 x 980 ) / 12740
= 130 / 980
= 130
Step2:
LCM(10, 679) = 6790
GCD(10, 679) = ( 10 x 679 ) / 6790
= 10 / 679
= 10
Step3:
LCM(1, 643) = 643
GCD(1, 643) = ( 1 x 643 ) / 643
= 1 / 643
= 1
So, Greatest Common Divisor of 130, 980, 679, 643 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 130, 980, 679, 643
The greatest common divisor of numbers 130, 980, 679, 643 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 130, 980, 679, 643 is 1.
1. What is the GCD of 130, 980, 679, 643?
GCD of given numbers 130, 980, 679, 643 is 1
2. How to calculate the greatest common divisor of 130, 980, 679, 643?
We can find the highest common divisor of 130, 980, 679, 643 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 130, 980, 679, 643 i.e 1.
3. How can I use the GCD of 130, 980, 679, 643Calculator?
Out the numbers 130, 980, 679, 643 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.