# Divisors of 390

## Divisors of 390

The list of all positive divisors (that is, the list of all integers that divide 22) is as follows :

Accordingly:

390 is multiplo of 1

390 is multiplo of 2

390 is multiplo of 3

390 is multiplo of 5

390 is multiplo of 6

390 is multiplo of 10

390 is multiplo of 13

390 is multiplo of 15

390 is multiplo of 26

390 is multiplo of 30

390 is multiplo of 39

390 is multiplo of 65

390 is multiplo of 78

390 is multiplo of 130

390 is multiplo of 195

390 has 15 positive divisors

## Parity of 390

In addition we can say of the number 390 that it is even

390 is an even number, as it is divisible by 2 : 390/2 = 195

## The factors for 390

The factors for 390 are all the numbers between -390 and 390 , which divide 390 without leaving any remainder. Since 390 divided by -390 is an integer, -390 is a factor of 390 .

Since 390 divided by -390 is a whole number, -390 is a factor of 390

Since 390 divided by -195 is a whole number, -195 is a factor of 390

Since 390 divided by -130 is a whole number, -130 is a factor of 390

Since 390 divided by -78 is a whole number, -78 is a factor of 390

Since 390 divided by -65 is a whole number, -65 is a factor of 390

Since 390 divided by -39 is a whole number, -39 is a factor of 390

Since 390 divided by -30 is a whole number, -30 is a factor of 390

Since 390 divided by -26 is a whole number, -26 is a factor of 390

Since 390 divided by -15 is a whole number, -15 is a factor of 390

Since 390 divided by -13 is a whole number, -13 is a factor of 390

Since 390 divided by -10 is a whole number, -10 is a factor of 390

Since 390 divided by -6 is a whole number, -6 is a factor of 390

Since 390 divided by -5 is a whole number, -5 is a factor of 390

Since 390 divided by -3 is a whole number, -3 is a factor of 390

Since 390 divided by -2 is a whole number, -2 is a factor of 390

Since 390 divided by -1 is a whole number, -1 is a factor of 390

Since 390 divided by 1 is a whole number, 1 is a factor of 390

Since 390 divided by 2 is a whole number, 2 is a factor of 390

Since 390 divided by 3 is a whole number, 3 is a factor of 390

Since 390 divided by 5 is a whole number, 5 is a factor of 390

Since 390 divided by 6 is a whole number, 6 is a factor of 390

Since 390 divided by 10 is a whole number, 10 is a factor of 390

Since 390 divided by 13 is a whole number, 13 is a factor of 390

Since 390 divided by 15 is a whole number, 15 is a factor of 390

Since 390 divided by 26 is a whole number, 26 is a factor of 390

Since 390 divided by 30 is a whole number, 30 is a factor of 390

Since 390 divided by 39 is a whole number, 39 is a factor of 390

Since 390 divided by 65 is a whole number, 65 is a factor of 390

Since 390 divided by 78 is a whole number, 78 is a factor of 390

Since 390 divided by 130 is a whole number, 130 is a factor of 390

Since 390 divided by 195 is a whole number, 195 is a factor of 390

## What are the multiples of 390?

Multiples of 390 are all integers divisible by 390 , i.e. the remainder of the full division by 390 is zero. There are infinite multiples of 390. The smallest multiples of 390 are:

0 : in fact, 0 is divisible by any integer, so it is also a multiple of 390 since 0 × 390 = 0

390 : in fact, 390 is a multiple of itself, since 390 is divisible by 390 (it was 390 / 390 = 1, so the rest of this division is zero)

780: in fact, 780 = 390 × 2

1170: in fact, 1170 = 390 × 3

1560: in fact, 1560 = 390 × 4

1950: in fact, 1950 = 390 × 5

etc.

## Is 390 a prime number?

It is possible to determine using mathematical techniques whether an integer is prime or not.

for 390, the answer is: No, 390 is not a prime number.

## How do you determine if a number is prime?

To know the primality of an integer, we can use several algorithms. The most naive is to try all divisors below the number you want to know if it is prime (in our case 390). We can already eliminate even numbers bigger than 2 (then 4 , 6 , 8 ...). Besides, we can stop at the square root of the number in question (here 19.748 ). Historically, the Eratosthenes screen (which dates back to Antiquity) uses this technique relatively effectively.

More modern techniques include the Atkin screen, probabilistic tests, or the cyclotomic test.