It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 299 999 998 is not a prime number.
For example, 299 999 998 can be divided by 2: 299 999 998 / 2 = 149 999 999.
For 299 999 998 to be a prime number, it would have been required that 299 999 998 has only two divisors, i.e., itself and 1.
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299 999 998 is an even number, because it is evenly divisible by 2: 299 999 998 / 2 = 149 999 999.
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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 299 999 998 is about 17 320.508.
Thus, the square root of 299 999 998 is not an integer, and therefore 299 999 998 is not a square number.
The square of a number (here 299 999 998) is the result of the product of this number (299 999 998) by itself (i.e., 299 999 998 × 299 999 998); the square of 299 999 998 is sometimes called "raising 299 999 998 to the power 2", or "299 999 998 squared".
The square of 299 999 998 is 89 999 998 800 000 000 because 299 999 998 × 299 999 998 = 299 999 9982 = 89 999 998 800 000 000.
As a consequence, 299 999 998 is the square root of 89 999 998 800 000 000.
299 999 998 is a number with 9 digits.
The multiples of 299 999 998 are all integers evenly divisible by 299 999 998, that is all numbers such that the remainder of the division by 299 999 998 is zero. There are infinitely many multiples of 299 999 998. The smallest multiples of 299 999 998 are: