It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 998 948 is not a prime number.
For example, 998 948 can be divided by 2: 998 948 / 2 = 499 474.
For 998 948 to be a prime number, it would have been required that 998 948 has only two divisors, i.e., itself and 1.
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998 948 is an even number, because it is evenly divisible by 2: 998 948 / 2 = 499 474.
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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 998 948 is about 999.474.
Thus, the square root of 998 948 is not an integer, and therefore 998 948 is not a square number.
The square of a number (here 998 948) is the result of the product of this number (998 948) by itself (i.e., 998 948 × 998 948); the square of 998 948 is sometimes called "raising 998 948 to the power 2", or "998 948 squared".
The square of 998 948 is 997 897 106 704 because 998 948 × 998 948 = 998 9482 = 997 897 106 704.
As a consequence, 998 948 is the square root of 997 897 106 704.
The multiples of 998 948 are all integers evenly divisible by 998 948, that is all numbers such that the remainder of the division by 998 948 is zero. There are infinitely many multiples of 998 948. The smallest multiples of 998 948 are: