It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 361 is not a prime number.
For example, 240 361 can be divided by 11: 240 361 / 11 = 21 851.
For 240 361 to be a prime number, it would have been required that 240 361 has only two divisors, i.e., itself and 1.
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240 361 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 240 361 is about 490.266.
Thus, the square root of 240 361 is not an integer, and therefore 240 361 is not a square number.
The square of a number (here 240 361) is the result of the product of this number (240 361) by itself (i.e., 240 361 × 240 361); the square of 240 361 is sometimes called "raising 240 361 to the power 2", or "240 361 squared".
The square of 240 361 is 57 773 410 321 because 240 361 × 240 361 = 240 3612 = 57 773 410 321.
As a consequence, 240 361 is the square root of 57 773 410 321.
The multiples of 240 361 are all integers evenly divisible by 240 361, that is all numbers such that the remainder of the division by 240 361 is zero. There are infinitely many multiples of 240 361. The smallest multiples of 240 361 are: