It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 306 is not a prime number.
For example, 988 306 can be divided by 2: 988 306 / 2 = 494 153.
For 988 306 to be a prime number, it would have been required that 988 306 has only two divisors, i.e., itself and 1.
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988 306 is an even number, because it is evenly divisible by 2: 988 306 / 2 = 494 153.
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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 988 306 is about 994.136.
Thus, the square root of 988 306 is not an integer, and therefore 988 306 is not a square number.
The square of a number (here 988 306) is the result of the product of this number (988 306) by itself (i.e., 988 306 × 988 306); the square of 988 306 is sometimes called "raising 988 306 to the power 2", or "988 306 squared".
The square of 988 306 is 976 748 749 636 because 988 306 × 988 306 = 988 3062 = 976 748 749 636.
As a consequence, 988 306 is the square root of 976 748 749 636.
The multiples of 988 306 are all integers evenly divisible by 988 306, that is all numbers such that the remainder of the division by 988 306 is zero. There are infinitely many multiples of 988 306. The smallest multiples of 988 306 are: