It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 563 216 is not a prime number.
For example, 563 216 can be divided by 2: 563 216 / 2 = 281 608.
For 563 216 to be a prime number, it would have been required that 563 216 has only two divisors, i.e., itself and 1.
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563 216 is an even number, because it is evenly divisible by 2: 563 216 / 2 = 281 608.
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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 563 216 is about 750.477.
Thus, the square root of 563 216 is not an integer, and therefore 563 216 is not a square number.
The square of a number (here 563 216) is the result of the product of this number (563 216) by itself (i.e., 563 216 × 563 216); the square of 563 216 is sometimes called "raising 563 216 to the power 2", or "563 216 squared".
The square of 563 216 is 317 212 262 656 because 563 216 × 563 216 = 563 2162 = 317 212 262 656.
As a consequence, 563 216 is the square root of 317 212 262 656.
The multiples of 563 216 are all integers evenly divisible by 563 216, that is all numbers such that the remainder of the division by 563 216 is zero. There are infinitely many multiples of 563 216. The smallest multiples of 563 216 are: