It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 801 is not a prime number.
For example, 165 801 can be divided by 3: 165 801 / 3 = 55 267.
Find out more:
For 165 801 to be a prime number, it would have been required that 165 801 has only two divisors, i.e., itself and 1.
Find out more:
165 801 is an odd number, because it is not evenly divisible by 2.
Find out more:
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 165 801 is about 407.187.
Thus, the square root of 165 801 is not an integer, and therefore 165 801 is not a square number.
The square of a number (here 165 801) is the result of the product of this number (165 801) by itself (i.e., 165 801 × 165 801); the square of 165 801 is sometimes called "raising 165 801 to the power 2", or "165 801 squared".
The square of 165 801 is 27 489 971 601 because 165 801 × 165 801 = 165 8012 = 27 489 971 601.
As a consequence, 165 801 is the square root of 27 489 971 601.
The multiples of 165 801 are all integers evenly divisible by 165 801, that is all numbers such that the remainder of the division by 165 801 is zero. There are infinitely many multiples of 165 801. The smallest multiples of 165 801 are: