It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 304 is not a prime number.
For example, 165 304 can be divided by 2: 165 304 / 2 = 82 652.
For 165 304 to be a prime number, it would have been required that 165 304 has only two divisors, i.e., itself and 1.
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165 304 is an even number, because it is evenly divisible by 2: 165 304 / 2 = 82 652.
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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 165 304 is about 406.576.
Thus, the square root of 165 304 is not an integer, and therefore 165 304 is not a square number.
The square of a number (here 165 304) is the result of the product of this number (165 304) by itself (i.e., 165 304 × 165 304); the square of 165 304 is sometimes called "raising 165 304 to the power 2", or "165 304 squared".
The square of 165 304 is 27 325 412 416 because 165 304 × 165 304 = 165 3042 = 27 325 412 416.
As a consequence, 165 304 is the square root of 27 325 412 416.
The multiples of 165 304 are all integers evenly divisible by 165 304, that is all numbers such that the remainder of the division by 165 304 is zero. There are infinitely many multiples of 165 304. The smallest multiples of 165 304 are: