It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 976 is not a prime number.
For example, 988 976 can be divided by 2: 988 976 / 2 = 494 488.
For 988 976 to be a prime number, it would have been required that 988 976 has only two divisors, i.e., itself and 1.
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988 976 is an even number, because it is evenly divisible by 2: 988 976 / 2 = 494 488.
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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 988 976 is about 994.473.
Thus, the square root of 988 976 is not an integer, and therefore 988 976 is not a square number.
The square of a number (here 988 976) is the result of the product of this number (988 976) by itself (i.e., 988 976 × 988 976); the square of 988 976 is sometimes called "raising 988 976 to the power 2", or "988 976 squared".
The square of 988 976 is 978 073 528 576 because 988 976 × 988 976 = 988 9762 = 978 073 528 576.
As a consequence, 988 976 is the square root of 978 073 528 576.
The multiples of 988 976 are all integers evenly divisible by 988 976, that is all numbers such that the remainder of the division by 988 976 is zero. There are infinitely many multiples of 988 976. The smallest multiples of 988 976 are: