It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 401 is not a prime number.
For example, 240 401 can be divided by 7: 240 401 / 7 = 34 343.
For 240 401 to be a prime number, it would have been required that 240 401 has only two divisors, i.e., itself and 1.
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240 401 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 240 401 is about 490.307.
Thus, the square root of 240 401 is not an integer, and therefore 240 401 is not a square number.
The square of a number (here 240 401) is the result of the product of this number (240 401) by itself (i.e., 240 401 × 240 401); the square of 240 401 is sometimes called "raising 240 401 to the power 2", or "240 401 squared".
The square of 240 401 is 57 792 640 801 because 240 401 × 240 401 = 240 4012 = 57 792 640 801.
As a consequence, 240 401 is the square root of 57 792 640 801.
The multiples of 240 401 are all integers evenly divisible by 240 401, that is all numbers such that the remainder of the division by 240 401 is zero. There are infinitely many multiples of 240 401. The smallest multiples of 240 401 are: