Online GCD Calculator is useful to find the GCD of 390, 870, 299, 491 quickly. Get the easiest ways to solve the greatest common divisor of 390, 870, 299, 491 i.e 1 in different methods as follows.
Given Input numbers are 390, 870, 299, 491
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 870 :
The positive integer divisors of 870 that completely divides 870 are.
1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870
Divisors of 299 :
The positive integer divisors of 299 that completely divides 299 are.
1, 13, 23, 299
Divisors of 491 :
The positive integer divisors of 491 that completely divides 491 are.
1, 491
GCD of numbers is the greatest common divisor
So, the GCD (390, 870, 299, 491) = 1.
Given numbers are 390, 870, 299, 491
The list of prime factors of all numbers are
Prime factors of 390 are 2 x 3 x 5 x 13
Prime factors of 870 are 2 x 3 x 5 x 29
Prime factors of 299 are 13 x 23
Prime factors of 491 are 491
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 390, 870, 299, 491
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(390, 870) = 11310
GCD(390, 870) = ( 390 x 870 ) / 11310
= 390 / 870
= 390
Step2:
LCM(30, 299) = 8970
GCD(30, 299) = ( 30 x 299 ) / 8970
= 30 / 299
= 30
Step3:
LCM(1, 491) = 491
GCD(1, 491) = ( 1 x 491 ) / 491
= 1 / 491
= 1
So, Greatest Common Divisor of 390, 870, 299, 491 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 390, 870, 299, 491
The greatest common divisor of numbers 390, 870, 299, 491 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 390, 870, 299, 491 is 1.
1. What is the GCD of 390, 870, 299, 491?
GCD of given numbers 390, 870, 299, 491 is 1
2. How to calculate the greatest common divisor of 390, 870, 299, 491?
We can find the highest common divisor of 390, 870, 299, 491 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, 870, 299, 491 i.e 1.
3. How can I use the GCD of 390, 870, 299, 491Calculator?
Out the numbers 390, 870, 299, 491 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.