It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 33 408 is not a prime number.
For example, 33 408 can be divided by 2: 33 408 / 2 = 16 704.
For 33 408 to be a prime number, it would have been required that 33 408 has only two divisors, i.e., itself and 1.
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33 408 is an even number, because it is evenly divisible by 2: 33 408 / 2 = 16 704.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 33 408 is about 182.779.
Thus, the square root of 33 408 is not an integer, and therefore 33 408 is not a square number.
The square of a number (here 33 408) is the result of the product of this number (33 408) by itself (i.e., 33 408 × 33 408); the square of 33 408 is sometimes called "raising 33 408 to the power 2", or "33 408 squared".
The square of 33 408 is 1 116 094 464 because 33 408 × 33 408 = 33 4082 = 1 116 094 464.
As a consequence, 33 408 is the square root of 1 116 094 464.
The multiples of 33 408 are all integers evenly divisible by 33 408, that is all numbers such that the remainder of the division by 33 408 is zero. There are infinitely many multiples of 33 408. The smallest multiples of 33 408 are: