It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 297 997 is not a prime number.
For example, 297 997 can be divided by 7: 297 997 / 7 = 42 571.
For 297 997 to be a prime number, it would have been required that 297 997 has only two divisors, i.e., itself and 1.
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297 997 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 297 997 is about 545.891.
Thus, the square root of 297 997 is not an integer, and therefore 297 997 is not a square number.
The square of a number (here 297 997) is the result of the product of this number (297 997) by itself (i.e., 297 997 × 297 997); the square of 297 997 is sometimes called "raising 297 997 to the power 2", or "297 997 squared".
The square of 297 997 is 88 802 212 009 because 297 997 × 297 997 = 297 9972 = 88 802 212 009.
As a consequence, 297 997 is the square root of 88 802 212 009.
The multiples of 297 997 are all integers evenly divisible by 297 997, that is all numbers such that the remainder of the division by 297 997 is zero. There are infinitely many multiples of 297 997. The smallest multiples of 297 997 are: