It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 528 is not a prime number.
For example, 240 528 can be divided by 2: 240 528 / 2 = 120 264.
For 240 528 to be a prime number, it would have been required that 240 528 has only two divisors, i.e., itself and 1.
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240 528 is an even number, because it is evenly divisible by 2: 240 528 / 2 = 120 264.
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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 240 528 is about 490.437.
Thus, the square root of 240 528 is not an integer, and therefore 240 528 is not a square number.
The square of a number (here 240 528) is the result of the product of this number (240 528) by itself (i.e., 240 528 × 240 528); the square of 240 528 is sometimes called "raising 240 528 to the power 2", or "240 528 squared".
The square of 240 528 is 57 853 718 784 because 240 528 × 240 528 = 240 5282 = 57 853 718 784.
As a consequence, 240 528 is the square root of 57 853 718 784.
The multiples of 240 528 are all integers evenly divisible by 240 528, that is all numbers such that the remainder of the division by 240 528 is zero. There are infinitely many multiples of 240 528. The smallest multiples of 240 528 are: