Online GCD Calculator is useful to find the GCD of 390, 307, 419, 355 quickly. Get the easiest ways to solve the greatest common divisor of 390, 307, 419, 355 i.e 1 in different methods as follows.
Given Input numbers are 390, 307, 419, 355
In the factoring method, we have to find the divisors of all numbers
Divisors of 390 :
The positive integer divisors of 390 that completely divides 390 are.
1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
Divisors of 307 :
The positive integer divisors of 307 that completely divides 307 are.
1, 307
Divisors of 419 :
The positive integer divisors of 419 that completely divides 419 are.
1, 419
Divisors of 355 :
The positive integer divisors of 355 that completely divides 355 are.
1, 5, 71, 355
GCD of numbers is the greatest common divisor
So, the GCD (390, 307, 419, 355) = 1.
Given numbers are 390, 307, 419, 355
The list of prime factors of all numbers are
Prime factors of 390 are 2 x 3 x 5 x 13
Prime factors of 307 are 307
Prime factors of 419 are 419
Prime factors of 355 are 5 x 71
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 390, 307, 419, 355
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(390, 307) = 119730
GCD(390, 307) = ( 390 x 307 ) / 119730
= 390 / 307
= 390
Step2:
LCM(1, 419) = 419
GCD(1, 419) = ( 1 x 419 ) / 419
= 1 / 419
= 1
Step3:
LCM(1, 355) = 355
GCD(1, 355) = ( 1 x 355 ) / 355
= 1 / 355
= 1
So, Greatest Common Divisor of 390, 307, 419, 355 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 390, 307, 419, 355
The greatest common divisor of numbers 390, 307, 419, 355 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 390, 307, 419, 355 is 1.
1. What is the GCD of 390, 307, 419, 355?
GCD of given numbers 390, 307, 419, 355 is 1
2. How to calculate the greatest common divisor of 390, 307, 419, 355?
We can find the highest common divisor of 390, 307, 419, 355 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 390, 307, 419, 355 i.e 1.
3. How can I use the GCD of 390, 307, 419, 355Calculator?
Out the numbers 390, 307, 419, 355 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.