It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 270 016 is not a prime number.
For example, 270 016 can be divided by 2: 270 016 / 2 = 135 008.
For 270 016 to be a prime number, it would have been required that 270 016 has only two divisors, i.e., itself and 1.
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270 016 is an even number, because it is evenly divisible by 2: 270 016 / 2 = 135 008.
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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 270 016 is about 519.631.
Thus, the square root of 270 016 is not an integer, and therefore 270 016 is not a square number.
The square of a number (here 270 016) is the result of the product of this number (270 016) by itself (i.e., 270 016 × 270 016); the square of 270 016 is sometimes called "raising 270 016 to the power 2", or "270 016 squared".
The square of 270 016 is 72 908 640 256 because 270 016 × 270 016 = 270 0162 = 72 908 640 256.
As a consequence, 270 016 is the square root of 72 908 640 256.
The multiples of 270 016 are all integers evenly divisible by 270 016, that is all numbers such that the remainder of the division by 270 016 is zero. There are infinitely many multiples of 270 016. The smallest multiples of 270 016 are: