It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 997 042 is not a prime number.
For example, 997 042 can be divided by 2: 997 042 / 2 = 498 521.
For 997 042 to be a prime number, it would have been required that 997 042 has only two divisors, i.e., itself and 1.
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997 042 is an even number, because it is evenly divisible by 2: 997 042 / 2 = 498 521.
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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 997 042 is about 998.520.
Thus, the square root of 997 042 is not an integer, and therefore 997 042 is not a square number.
The square of a number (here 997 042) is the result of the product of this number (997 042) by itself (i.e., 997 042 × 997 042); the square of 997 042 is sometimes called "raising 997 042 to the power 2", or "997 042 squared".
The square of 997 042 is 994 092 749 764 because 997 042 × 997 042 = 997 0422 = 994 092 749 764.
As a consequence, 997 042 is the square root of 994 092 749 764.
The multiples of 997 042 are all integers evenly divisible by 997 042, that is all numbers such that the remainder of the division by 997 042 is zero. There are infinitely many multiples of 997 042. The smallest multiples of 997 042 are: