It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 267 is not a prime number.
For example, 240 267 can be divided by 3: 240 267 / 3 = 80 089.
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For 240 267 to be a prime number, it would have been required that 240 267 has only two divisors, i.e., itself and 1.
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240 267 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 240 267 is about 490.170.
Thus, the square root of 240 267 is not an integer, and therefore 240 267 is not a square number.
The square of a number (here 240 267) is the result of the product of this number (240 267) by itself (i.e., 240 267 × 240 267); the square of 240 267 is sometimes called "raising 240 267 to the power 2", or "240 267 squared".
The square of 240 267 is 57 728 231 289 because 240 267 × 240 267 = 240 2672 = 57 728 231 289.
As a consequence, 240 267 is the square root of 57 728 231 289.
The multiples of 240 267 are all integers evenly divisible by 240 267, that is all numbers such that the remainder of the division by 240 267 is zero. There are infinitely many multiples of 240 267. The smallest multiples of 240 267 are: