It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 115 102 is not a prime number.
For example, 115 102 can be divided by 2: 115 102 / 2 = 57 551.
For 115 102 to be a prime number, it would have been required that 115 102 has only two divisors, i.e., itself and 1.
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115 102 is an even number, because it is evenly divisible by 2: 115 102 / 2 = 57 551.
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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 115 102 is about 339.267.
Thus, the square root of 115 102 is not an integer, and therefore 115 102 is not a square number.
The square of a number (here 115 102) is the result of the product of this number (115 102) by itself (i.e., 115 102 × 115 102); the square of 115 102 is sometimes called "raising 115 102 to the power 2", or "115 102 squared".
The square of 115 102 is 13 248 470 404 because 115 102 × 115 102 = 115 1022 = 13 248 470 404.
As a consequence, 115 102 is the square root of 13 248 470 404.
The multiples of 115 102 are all integers evenly divisible by 115 102, that is all numbers such that the remainder of the division by 115 102 is zero. There are infinitely many multiples of 115 102. The smallest multiples of 115 102 are: