It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 300 804 013 is not a prime number.
For example, 300 804 013 can be divided by 6 221: 300 804 013 / 6221 = 48 353.
For 300 804 013 to be a prime number, it would have been required that 300 804 013 has only two divisors, i.e., itself and 1.
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300 804 013 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 300 804 013 is about 17 343.702.
Thus, the square root of 300 804 013 is not an integer, and therefore 300 804 013 is not a square number.
The square of a number (here 300 804 013) is the result of the product of this number (300 804 013) by itself (i.e., 300 804 013 × 300 804 013); the square of 300 804 013 is sometimes called "raising 300 804 013 to the power 2", or "300 804 013 squared".
The square of 300 804 013 is 90 483 054 236 904 176 because 300 804 013 × 300 804 013 = 300 804 0132 = 90 483 054 236 904 176.
As a consequence, 300 804 013 is the square root of 90 483 054 236 904 176.
300 804 013 is a number with 9 digits.
The multiples of 300 804 013 are all integers evenly divisible by 300 804 013, that is all numbers such that the remainder of the division by 300 804 013 is zero. There are infinitely many multiples of 300 804 013. The smallest multiples of 300 804 013 are: