It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 997 122 is not a prime number.
For example, 997 122 can be divided by 2: 997 122 / 2 = 498 561.
For 997 122 to be a prime number, it would have been required that 997 122 has only two divisors, i.e., itself and 1.
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997 122 is an even number, because it is evenly divisible by 2: 997 122 / 2 = 498 561.
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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 997 122 is about 998.560.
Thus, the square root of 997 122 is not an integer, and therefore 997 122 is not a square number.
The square of a number (here 997 122) is the result of the product of this number (997 122) by itself (i.e., 997 122 × 997 122); the square of 997 122 is sometimes called "raising 997 122 to the power 2", or "997 122 squared".
The square of 997 122 is 994 252 282 884 because 997 122 × 997 122 = 997 1222 = 994 252 282 884.
As a consequence, 997 122 is the square root of 994 252 282 884.
The multiples of 997 122 are all integers evenly divisible by 997 122, that is all numbers such that the remainder of the division by 997 122 is zero. There are infinitely many multiples of 997 122. The smallest multiples of 997 122 are: