It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 509 272 318 is not a prime number.
For example, 509 272 318 can be divided by 2: 509 272 318 / 2 = 254 636 159.
For 509 272 318 to be a prime number, it would have been required that 509 272 318 has only two divisors, i.e., itself and 1.
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509 272 318 is an even number, because it is evenly divisible by 2: 509 272 318 / 2 = 254 636 159.
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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 509 272 318 is about 22 567.063.
Thus, the square root of 509 272 318 is not an integer, and therefore 509 272 318 is not a square number.
The square of a number (here 509 272 318) is the result of the product of this number (509 272 318) by itself (i.e., 509 272 318 × 509 272 318); the square of 509 272 318 is sometimes called "raising 509 272 318 to the power 2", or "509 272 318 squared".
The square of 509 272 318 is 259 358 293 881 093 120 because 509 272 318 × 509 272 318 = 509 272 3182 = 259 358 293 881 093 120.
As a consequence, 509 272 318 is the square root of 259 358 293 881 093 120.
509 272 318 is a number with 9 digits.
The multiples of 509 272 318 are all integers evenly divisible by 509 272 318, that is all numbers such that the remainder of the division by 509 272 318 is zero. There are infinitely many multiples of 509 272 318. The smallest multiples of 509 272 318 are: