Online GCD Calculator is useful to find the GCD of 438, 644, 501, 280 quickly. Get the easiest ways to solve the greatest common divisor of 438, 644, 501, 280 i.e 1 in different methods as follows.
Given Input numbers are 438, 644, 501, 280
In the factoring method, we have to find the divisors of all numbers
Divisors of 438 :
The positive integer divisors of 438 that completely divides 438 are.
1, 2, 3, 6, 73, 146, 219, 438
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 501 :
The positive integer divisors of 501 that completely divides 501 are.
1, 3, 167, 501
Divisors of 280 :
The positive integer divisors of 280 that completely divides 280 are.
1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
GCD of numbers is the greatest common divisor
So, the GCD (438, 644, 501, 280) = 1.
Given numbers are 438, 644, 501, 280
The list of prime factors of all numbers are
Prime factors of 438 are 2 x 3 x 73
Prime factors of 644 are 2 x 2 x 7 x 23
Prime factors of 501 are 3 x 167
Prime factors of 280 are 2 x 2 x 2 x 5 x 7
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 438, 644, 501, 280
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(438, 644) = 141036
GCD(438, 644) = ( 438 x 644 ) / 141036
= 438 / 644
= 438
Step2:
LCM(2, 501) = 1002
GCD(2, 501) = ( 2 x 501 ) / 1002
= 2 / 501
= 2
Step3:
LCM(1, 280) = 280
GCD(1, 280) = ( 1 x 280 ) / 280
= 1 / 280
= 1
So, Greatest Common Divisor of 438, 644, 501, 280 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 438, 644, 501, 280
The greatest common divisor of numbers 438, 644, 501, 280 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 438, 644, 501, 280 is 1.
1. What is the GCD of 438, 644, 501, 280?
GCD of given numbers 438, 644, 501, 280 is 1
2. How to calculate the greatest common divisor of 438, 644, 501, 280?
We can find the highest common divisor of 438, 644, 501, 280 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 438, 644, 501, 280 i.e 1.
3. How can I use the GCD of 438, 644, 501, 280Calculator?
Out the numbers 438, 644, 501, 280 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.