It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 115 988 is not a prime number.
For example, 115 988 can be divided by 2: 115 988 / 2 = 57 994.
For 115 988 to be a prime number, it would have been required that 115 988 has only two divisors, i.e., itself and 1.
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115 988 is an even number, because it is evenly divisible by 2: 115 988 / 2 = 57 994.
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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 115 988 is about 340.570.
Thus, the square root of 115 988 is not an integer, and therefore 115 988 is not a square number.
The square of a number (here 115 988) is the result of the product of this number (115 988) by itself (i.e., 115 988 × 115 988); the square of 115 988 is sometimes called "raising 115 988 to the power 2", or "115 988 squared".
The square of 115 988 is 13 453 216 144 because 115 988 × 115 988 = 115 9882 = 13 453 216 144.
As a consequence, 115 988 is the square root of 13 453 216 144.
The multiples of 115 988 are all integers evenly divisible by 115 988, that is all numbers such that the remainder of the division by 115 988 is zero. There are infinitely many multiples of 115 988. The smallest multiples of 115 988 are: