It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 997 296 398 is not a prime number.
For example, 997 296 398 can be divided by 2: 997 296 398 / 2 = 498 648 199.
For 997 296 398 to be a prime number, it would have been required that 997 296 398 has only two divisors, i.e., itself and 1.
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997 296 398 is an even number, because it is evenly divisible by 2: 997 296 398 / 2 = 498 648 199.
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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 997 296 398 is about 31 580.000.
Thus, the square root of 997 296 398 is not an integer, and therefore 997 296 398 is not a square number.
The square of a number (here 997 296 398) is the result of the product of this number (997 296 398) by itself (i.e., 997 296 398 × 997 296 398); the square of 997 296 398 is sometimes called "raising 997 296 398 to the power 2", or "997 296 398 squared".
The square of 997 296 398 is 994 600 105 463 774 464 because 997 296 398 × 997 296 398 = 997 296 3982 = 994 600 105 463 774 464.
As a consequence, 997 296 398 is the square root of 994 600 105 463 774 464.
997 296 398 is a number with 9 digits.
The multiples of 997 296 398 are all integers evenly divisible by 997 296 398, that is all numbers such that the remainder of the division by 997 296 398 is zero. There are infinitely many multiples of 997 296 398. The smallest multiples of 997 296 398 are: