It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 188 is not a prime number.
For example, 165 188 can be divided by 2: 165 188 / 2 = 82 594.
For 165 188 to be a prime number, it would have been required that 165 188 has only two divisors, i.e., itself and 1.
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165 188 is an even number, because it is evenly divisible by 2: 165 188 / 2 = 82 594.
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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 165 188 is about 406.433.
Thus, the square root of 165 188 is not an integer, and therefore 165 188 is not a square number.
The square of a number (here 165 188) is the result of the product of this number (165 188) by itself (i.e., 165 188 × 165 188); the square of 165 188 is sometimes called "raising 165 188 to the power 2", or "165 188 squared".
The square of 165 188 is 27 287 075 344 because 165 188 × 165 188 = 165 1882 = 27 287 075 344.
As a consequence, 165 188 is the square root of 27 287 075 344.
The multiples of 165 188 are all integers evenly divisible by 165 188, that is all numbers such that the remainder of the division by 165 188 is zero. There are infinitely many multiples of 165 188. The smallest multiples of 165 188 are: