It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 053 is not a prime number.
For example, 165 053 can be divided by 7: 165 053 / 7 = 23 579.
For 165 053 to be a prime number, it would have been required that 165 053 has only two divisors, i.e., itself and 1.
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165 053 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 165 053 is about 406.267.
Thus, the square root of 165 053 is not an integer, and therefore 165 053 is not a square number.
The square of a number (here 165 053) is the result of the product of this number (165 053) by itself (i.e., 165 053 × 165 053); the square of 165 053 is sometimes called "raising 165 053 to the power 2", or "165 053 squared".
The square of 165 053 is 27 242 492 809 because 165 053 × 165 053 = 165 0532 = 27 242 492 809.
As a consequence, 165 053 is the square root of 27 242 492 809.
The multiples of 165 053 are all integers evenly divisible by 165 053, that is all numbers such that the remainder of the division by 165 053 is zero. There are infinitely many multiples of 165 053. The smallest multiples of 165 053 are: