# Divisors of 385

## Divisors of 385

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

Accordingly:

385 is multiplo of 1

385 is multiplo of 5

385 is multiplo of 7

385 is multiplo of 11

385 is multiplo of 35

385 is multiplo of 55

385 is multiplo of 77

385 has 7 positive divisors

## Parity of 385

385is an odd number,as it is not divisible by 2

## The factors for 385

The factors for 385 are all the numbers between -385 and 385 , which divide 385 without leaving any remainder. Since 385 divided by -385 is an integer, -385 is a factor of 385 .

Since 385 divided by -385 is a whole number, -385 is a factor of 385

Since 385 divided by -77 is a whole number, -77 is a factor of 385

Since 385 divided by -55 is a whole number, -55 is a factor of 385

Since 385 divided by -35 is a whole number, -35 is a factor of 385

Since 385 divided by -11 is a whole number, -11 is a factor of 385

Since 385 divided by -7 is a whole number, -7 is a factor of 385

Since 385 divided by -5 is a whole number, -5 is a factor of 385

Since 385 divided by -1 is a whole number, -1 is a factor of 385

Since 385 divided by 1 is a whole number, 1 is a factor of 385

Since 385 divided by 5 is a whole number, 5 is a factor of 385

Since 385 divided by 7 is a whole number, 7 is a factor of 385

Since 385 divided by 11 is a whole number, 11 is a factor of 385

Since 385 divided by 35 is a whole number, 35 is a factor of 385

Since 385 divided by 55 is a whole number, 55 is a factor of 385

Since 385 divided by 77 is a whole number, 77 is a factor of 385

## What are the multiples of 385?

Multiples of 385 are all integers divisible by 385 , i.e. the remainder of the full division by 385 is zero. There are infinite multiples of 385. The smallest multiples of 385 are:

0 : in fact, 0 is divisible by any integer, so it is also a multiple of 385 since 0 × 385 = 0

385 : in fact, 385 is a multiple of itself, since 385 is divisible by 385 (it was 385 / 385 = 1, so the rest of this division is zero)

770: in fact, 770 = 385 × 2

1155: in fact, 1155 = 385 × 3

1540: in fact, 1540 = 385 × 4

1925: in fact, 1925 = 385 × 5

etc.

## Is 385 a prime number?

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

for 385, the answer is: No, 385 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 385). 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 19.621 ). 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.