It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 872 is not a prime number.
For example, 240 872 can be divided by 2: 240 872 / 2 = 120 436.
For 240 872 to be a prime number, it would have been required that 240 872 has only two divisors, i.e., itself and 1.
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240 872 is an even number, because it is evenly divisible by 2: 240 872 / 2 = 120 436.
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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 240 872 is about 490.787.
Thus, the square root of 240 872 is not an integer, and therefore 240 872 is not a square number.
The square of a number (here 240 872) is the result of the product of this number (240 872) by itself (i.e., 240 872 × 240 872); the square of 240 872 is sometimes called "raising 240 872 to the power 2", or "240 872 squared".
The square of 240 872 is 58 019 320 384 because 240 872 × 240 872 = 240 8722 = 58 019 320 384.
As a consequence, 240 872 is the square root of 58 019 320 384.
The multiples of 240 872 are all integers evenly divisible by 240 872, that is all numbers such that the remainder of the division by 240 872 is zero. There are infinitely many multiples of 240 872. The smallest multiples of 240 872 are: