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In addition we can say of the number **1304 that it is even**

1304 is an even number, as it is divisible by 2 : 1304/2 = 652

The factors for 1304 are all the numbers between -1304 and 1304 , which divide 1304 without leaving any remainder. Since 1304 divided by -1304 is an integer, -1304 is a factor of 1304 .

Since 1304 divided by -1304 is a whole number, -1304 is a factor of 1304

Since 1304 divided by -652 is a whole number, -652 is a factor of 1304

Since 1304 divided by -326 is a whole number, -326 is a factor of 1304

Since 1304 divided by -163 is a whole number, -163 is a factor of 1304

Since 1304 divided by -8 is a whole number, -8 is a factor of 1304

Since 1304 divided by -4 is a whole number, -4 is a factor of 1304

Since 1304 divided by -2 is a whole number, -2 is a factor of 1304

Since 1304 divided by -1 is a whole number, -1 is a factor of 1304

Since 1304 divided by 1 is a whole number, 1 is a factor of 1304

Since 1304 divided by 2 is a whole number, 2 is a factor of 1304

Since 1304 divided by 4 is a whole number, 4 is a factor of 1304

Since 1304 divided by 8 is a whole number, 8 is a factor of 1304

Since 1304 divided by 163 is a whole number, 163 is a factor of 1304

Since 1304 divided by 326 is a whole number, 326 is a factor of 1304

Since 1304 divided by 652 is a whole number, 652 is a factor of 1304

Multiples of 1304 are all integers divisible by 1304 , i.e. the remainder of the full division by 1304 is zero. There are infinite multiples of 1304. The smallest multiples of 1304 are:

0 : in fact, 0 is divisible by any integer, so it is also a multiple of 1304 since 0 × 1304 = 0

1304 : in fact, 1304 is a multiple of itself, since 1304 is divisible by 1304 (it was 1304 / 1304 = 1, so the rest of this division is zero)

2608: in fact, 2608 = 1304 × 2

3912: in fact, 3912 = 1304 × 3

5216: in fact, 5216 = 1304 × 4

6520: in fact, 6520 = 1304 × 5

etc.

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

for 1304, the answer is:
**No, 1304 is not a prime number**.

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 1304). 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 36.111 ). 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.

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