It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 509 308 959 is not a prime number.
For example, 509 308 959 can be divided by 3: 509 308 959 / 3 = 169 769 653.
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For 509 308 959 to be a prime number, it would have been required that 509 308 959 has only two divisors, i.e., itself and 1.
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509 308 959 is an odd number, because it is not evenly divisible by 2.
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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 509 308 959 is about 22 567.874.
Thus, the square root of 509 308 959 is not an integer, and therefore 509 308 959 is not a square number.
The square of a number (here 509 308 959) is the result of the product of this number (509 308 959) by itself (i.e., 509 308 959 × 509 308 959); the square of 509 308 959 is sometimes called "raising 509 308 959 to the power 2", or "509 308 959 squared".
The square of 509 308 959 is 259 395 615 717 663 680 because 509 308 959 × 509 308 959 = 509 308 9592 = 259 395 615 717 663 680.
As a consequence, 509 308 959 is the square root of 259 395 615 717 663 680.
509 308 959 is a number with 9 digits.
The multiples of 509 308 959 are all integers evenly divisible by 509 308 959, that is all numbers such that the remainder of the division by 509 308 959 is zero. There are infinitely many multiples of 509 308 959. The smallest multiples of 509 308 959 are: