It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 242 is not a prime number.
For example, 988 242 can be divided by 2: 988 242 / 2 = 494 121.
For 988 242 to be a prime number, it would have been required that 988 242 has only two divisors, i.e., itself and 1.
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988 242 is an even number, because it is evenly divisible by 2: 988 242 / 2 = 494 121.
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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 988 242 is about 994.104.
Thus, the square root of 988 242 is not an integer, and therefore 988 242 is not a square number.
The square of a number (here 988 242) is the result of the product of this number (988 242) by itself (i.e., 988 242 × 988 242); the square of 988 242 is sometimes called "raising 988 242 to the power 2", or "988 242 squared".
The square of 988 242 is 976 622 250 564 because 988 242 × 988 242 = 988 2422 = 976 622 250 564.
As a consequence, 988 242 is the square root of 976 622 250 564.
The multiples of 988 242 are all integers evenly divisible by 988 242, that is all numbers such that the remainder of the division by 988 242 is zero. There are infinitely many multiples of 988 242. The smallest multiples of 988 242 are: