It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 338 is not a prime number.
For example, 988 338 can be divided by 2: 988 338 / 2 = 494 169.
For 988 338 to be a prime number, it would have been required that 988 338 has only two divisors, i.e., itself and 1.
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988 338 is an even number, because it is evenly divisible by 2: 988 338 / 2 = 494 169.
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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 988 338 is about 994.152.
Thus, the square root of 988 338 is not an integer, and therefore 988 338 is not a square number.
The square of a number (here 988 338) is the result of the product of this number (988 338) by itself (i.e., 988 338 × 988 338); the square of 988 338 is sometimes called "raising 988 338 to the power 2", or "988 338 squared".
The square of 988 338 is 976 812 002 244 because 988 338 × 988 338 = 988 3382 = 976 812 002 244.
As a consequence, 988 338 is the square root of 976 812 002 244.
The multiples of 988 338 are all integers evenly divisible by 988 338, that is all numbers such that the remainder of the division by 988 338 is zero. There are infinitely many multiples of 988 338. The smallest multiples of 988 338 are: