Online GCD Calculator is useful to find the GCD of 438, 507, 642, 247 quickly. Get the easiest ways to solve the greatest common divisor of 438, 507, 642, 247 i.e 1 in different methods as follows.
Given Input numbers are 438, 507, 642, 247
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 507 :
The positive integer divisors of 507 that completely divides 507 are.
1, 3, 13, 39, 169, 507
Divisors of 642 :
The positive integer divisors of 642 that completely divides 642 are.
1, 2, 3, 6, 107, 214, 321, 642
Divisors of 247 :
The positive integer divisors of 247 that completely divides 247 are.
1, 13, 19, 247
GCD of numbers is the greatest common divisor
So, the GCD (438, 507, 642, 247) = 1.
Given numbers are 438, 507, 642, 247
The list of prime factors of all numbers are
Prime factors of 438 are 2 x 3 x 73
Prime factors of 507 are 3 x 13 x 13
Prime factors of 642 are 2 x 3 x 107
Prime factors of 247 are 13 x 19
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 438, 507, 642, 247
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(438, 507) = 74022
GCD(438, 507) = ( 438 x 507 ) / 74022
= 438 / 507
= 438
Step2:
LCM(3, 642) = 642
GCD(3, 642) = ( 3 x 642 ) / 642
= 3 / 642
= 3
Step3:
LCM(3, 247) = 741
GCD(3, 247) = ( 3 x 247 ) / 741
= 3 / 247
= 3
So, Greatest Common Divisor of 438, 507, 642, 247 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 438, 507, 642, 247
The greatest common divisor of numbers 438, 507, 642, 247 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 438, 507, 642, 247 is 1.
1. What is the GCD of 438, 507, 642, 247?
GCD of given numbers 438, 507, 642, 247 is 1
2. How to calculate the greatest common divisor of 438, 507, 642, 247?
We can find the highest common divisor of 438, 507, 642, 247 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, 507, 642, 247 i.e 1.
3. How can I use the GCD of 438, 507, 642, 247Calculator?
Out the numbers 438, 507, 642, 247 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.