# Divisors of 388

## Divisors of 388

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

Accordingly:

388 is multiplo of 1

388 is multiplo of 2

388 is multiplo of 4

388 is multiplo of 97

388 is multiplo of 194

388 has 5 positive divisors

## Parity of 388

In addition we can say of the number 388 that it is even

388 is an even number, as it is divisible by 2 : 388/2 = 194

## The factors for 388

The factors for 388 are all the numbers between -388 and 388 , which divide 388 without leaving any remainder. Since 388 divided by -388 is an integer, -388 is a factor of 388 .

Since 388 divided by -388 is a whole number, -388 is a factor of 388

Since 388 divided by -194 is a whole number, -194 is a factor of 388

Since 388 divided by -97 is a whole number, -97 is a factor of 388

Since 388 divided by -4 is a whole number, -4 is a factor of 388

Since 388 divided by -2 is a whole number, -2 is a factor of 388

Since 388 divided by -1 is a whole number, -1 is a factor of 388

Since 388 divided by 1 is a whole number, 1 is a factor of 388

Since 388 divided by 2 is a whole number, 2 is a factor of 388

Since 388 divided by 4 is a whole number, 4 is a factor of 388

Since 388 divided by 97 is a whole number, 97 is a factor of 388

Since 388 divided by 194 is a whole number, 194 is a factor of 388

## What are the multiples of 388?

Multiples of 388 are all integers divisible by 388 , i.e. the remainder of the full division by 388 is zero. There are infinite multiples of 388. The smallest multiples of 388 are:

0 : in fact, 0 is divisible by any integer, so it is also a multiple of 388 since 0 × 388 = 0

388 : in fact, 388 is a multiple of itself, since 388 is divisible by 388 (it was 388 / 388 = 1, so the rest of this division is zero)

776: in fact, 776 = 388 × 2

1164: in fact, 1164 = 388 × 3

1552: in fact, 1552 = 388 × 4

1940: in fact, 1940 = 388 × 5

etc.

## Is 388 a prime number?

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

for 388, the answer is: No, 388 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 388). 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 19.698 ). 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.