It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 276 is not a prime number.
For example, 240 276 can be divided by 2: 240 276 / 2 = 120 138.
For 240 276 to be a prime number, it would have been required that 240 276 has only two divisors, i.e., itself and 1.
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240 276 is an even number, because it is evenly divisible by 2: 240 276 / 2 = 120 138.
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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 240 276 is about 490.180.
Thus, the square root of 240 276 is not an integer, and therefore 240 276 is not a square number.
The square of a number (here 240 276) is the result of the product of this number (240 276) by itself (i.e., 240 276 × 240 276); the square of 240 276 is sometimes called "raising 240 276 to the power 2", or "240 276 squared".
The square of 240 276 is 57 732 556 176 because 240 276 × 240 276 = 240 2762 = 57 732 556 176.
As a consequence, 240 276 is the square root of 57 732 556 176.
The multiples of 240 276 are all integers evenly divisible by 240 276, that is all numbers such that the remainder of the division by 240 276 is zero. There are infinitely many multiples of 240 276. The smallest multiples of 240 276 are: