It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 509 013 308 is not a prime number.
For example, 509 013 308 can be divided by 2: 509 013 308 / 2 = 254 506 654.
For 509 013 308 to be a prime number, it would have been required that 509 013 308 has only two divisors, i.e., itself and 1.
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509 013 308 is an even number, because it is evenly divisible by 2: 509 013 308 / 2 = 254 506 654.
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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 509 013 308 is about 22 561.323.
Thus, the square root of 509 013 308 is not an integer, and therefore 509 013 308 is not a square number.
The square of a number (here 509 013 308) is the result of the product of this number (509 013 308) by itself (i.e., 509 013 308 × 509 013 308); the square of 509 013 308 is sometimes called "raising 509 013 308 to the power 2", or "509 013 308 squared".
The square of 509 013 308 is 259 094 547 721 102 848 because 509 013 308 × 509 013 308 = 509 013 3082 = 259 094 547 721 102 848.
As a consequence, 509 013 308 is the square root of 259 094 547 721 102 848.
509 013 308 is a number with 9 digits.
The multiples of 509 013 308 are all integers evenly divisible by 509 013 308, that is all numbers such that the remainder of the division by 509 013 308 is zero. There are infinitely many multiples of 509 013 308. The smallest multiples of 509 013 308 are: