It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 797 is not a prime number.
For example, 165 797 can be divided by 37: 165 797 / 37 = 4 481.
For 165 797 to be a prime number, it would have been required that 165 797 has only two divisors, i.e., itself and 1.
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165 797 is an odd number, because it is not evenly divisible by 2.
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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 165 797 is about 407.182.
Thus, the square root of 165 797 is not an integer, and therefore 165 797 is not a square number.
The square of a number (here 165 797) is the result of the product of this number (165 797) by itself (i.e., 165 797 × 165 797); the square of 165 797 is sometimes called "raising 165 797 to the power 2", or "165 797 squared".
The square of 165 797 is 27 488 645 209 because 165 797 × 165 797 = 165 7972 = 27 488 645 209.
As a consequence, 165 797 is the square root of 27 488 645 209.
The multiples of 165 797 are all integers evenly divisible by 165 797, that is all numbers such that the remainder of the division by 165 797 is zero. There are infinitely many multiples of 165 797. The smallest multiples of 165 797 are: