It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 792 is not a prime number.
For example, 165 792 can be divided by 2: 165 792 / 2 = 82 896.
For 165 792 to be a prime number, it would have been required that 165 792 has only two divisors, i.e., itself and 1.
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165 792 is an even number, because it is evenly divisible by 2: 165 792 / 2 = 82 896.
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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 165 792 is about 407.176.
Thus, the square root of 165 792 is not an integer, and therefore 165 792 is not a square number.
The square of a number (here 165 792) is the result of the product of this number (165 792) by itself (i.e., 165 792 × 165 792); the square of 165 792 is sometimes called "raising 165 792 to the power 2", or "165 792 squared".
The square of 165 792 is 27 486 987 264 because 165 792 × 165 792 = 165 7922 = 27 486 987 264.
As a consequence, 165 792 is the square root of 27 486 987 264.
The multiples of 165 792 are all integers evenly divisible by 165 792, that is all numbers such that the remainder of the division by 165 792 is zero. There are infinitely many multiples of 165 792. The smallest multiples of 165 792 are: