Online GCD Calculator is useful to find the GCD of 520, 644, 145, 980 quickly. Get the easiest ways to solve the greatest common divisor of 520, 644, 145, 980 i.e 1 in different methods as follows.
Given Input numbers are 520, 644, 145, 980
In the factoring method, we have to find the divisors of all numbers
Divisors of 520 :
The positive integer divisors of 520 that completely divides 520 are.
1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520
Divisors of 644 :
The positive integer divisors of 644 that completely divides 644 are.
1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
Divisors of 145 :
The positive integer divisors of 145 that completely divides 145 are.
1, 5, 29, 145
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 (520, 644, 145, 980) = 1.
Given numbers are 520, 644, 145, 980
The list of prime factors of all numbers are
Prime factors of 520 are 2 x 2 x 2 x 5 x 13
Prime factors of 644 are 2 x 2 x 7 x 23
Prime factors of 145 are 5 x 29
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 520, 644, 145, 980
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(520, 644) = 83720
GCD(520, 644) = ( 520 x 644 ) / 83720
= 520 / 644
= 520
Step2:
LCM(4, 145) = 580
GCD(4, 145) = ( 4 x 145 ) / 580
= 4 / 145
= 4
Step3:
LCM(1, 980) = 980
GCD(1, 980) = ( 1 x 980 ) / 980
= 1 / 980
= 1
So, Greatest Common Divisor of 520, 644, 145, 980 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 520, 644, 145, 980
The greatest common divisor of numbers 520, 644, 145, 980 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 520, 644, 145, 980 is 1.
1. What is the GCD of 520, 644, 145, 980?
GCD of given numbers 520, 644, 145, 980 is 1
2. How to calculate the greatest common divisor of 520, 644, 145, 980?
We can find the highest common divisor of 520, 644, 145, 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 520, 644, 145, 980 i.e 1.
3. How can I use the GCD of 520, 644, 145, 980Calculator?
Out the numbers 520, 644, 145, 980 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.