It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 888 is not a prime number.
For example, 988 888 can be divided by 2: 988 888 / 2 = 494 444.
For 988 888 to be a prime number, it would have been required that 988 888 has only two divisors, i.e., itself and 1.
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988 888 is an even number, because it is evenly divisible by 2: 988 888 / 2 = 494 444.
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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 988 888 is about 994.428.
Thus, the square root of 988 888 is not an integer, and therefore 988 888 is not a square number.
The square of a number (here 988 888) is the result of the product of this number (988 888) by itself (i.e., 988 888 × 988 888); the square of 988 888 is sometimes called "raising 988 888 to the power 2", or "988 888 squared".
The square of 988 888 is 977 899 476 544 because 988 888 × 988 888 = 988 8882 = 977 899 476 544.
As a consequence, 988 888 is the square root of 977 899 476 544.
The multiples of 988 888 are all integers evenly divisible by 988 888, that is all numbers such that the remainder of the division by 988 888 is zero. There are infinitely many multiples of 988 888. The smallest multiples of 988 888 are: