It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 429 is not a prime number.
For example, 165 429 can be divided by 3: 165 429 / 3 = 55 143.
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For 165 429 to be a prime number, it would have been required that 165 429 has only two divisors, i.e., itself and 1.
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165 429 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 165 429 is about 406.730.
Thus, the square root of 165 429 is not an integer, and therefore 165 429 is not a square number.
The square of a number (here 165 429) is the result of the product of this number (165 429) by itself (i.e., 165 429 × 165 429); the square of 165 429 is sometimes called "raising 165 429 to the power 2", or "165 429 squared".
The square of 165 429 is 27 366 754 041 because 165 429 × 165 429 = 165 4292 = 27 366 754 041.
As a consequence, 165 429 is the square root of 27 366 754 041.
The multiples of 165 429 are all integers evenly divisible by 165 429, that is all numbers such that the remainder of the division by 165 429 is zero. There are infinitely many multiples of 165 429. The smallest multiples of 165 429 are: