It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 563 721 738 is not a prime number.
For example, 563 721 738 can be divided by 2: 563 721 738 / 2 = 281 860 869.
For 563 721 738 to be a prime number, it would have been required that 563 721 738 has only two divisors, i.e., itself and 1.
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563 721 738 is an even number, because it is evenly divisible by 2: 563 721 738 / 2 = 281 860 869.
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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 563 721 738 is about 23 742.825.
Thus, the square root of 563 721 738 is not an integer, and therefore 563 721 738 is not a square number.
The square of a number (here 563 721 738) is the result of the product of this number (563 721 738) by itself (i.e., 563 721 738 × 563 721 738); the square of 563 721 738 is sometimes called "raising 563 721 738 to the power 2", or "563 721 738 squared".
The square of 563 721 738 is 317 782 197 893 740 672 because 563 721 738 × 563 721 738 = 563 721 7382 = 317 782 197 893 740 672.
As a consequence, 563 721 738 is the square root of 317 782 197 893 740 672.
563 721 738 is a number with 9 digits.
The multiples of 563 721 738 are all integers evenly divisible by 563 721 738, that is all numbers such that the remainder of the division by 563 721 738 is zero. There are infinitely many multiples of 563 721 738. The smallest multiples of 563 721 738 are: