It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 103 102 is not a prime number.
For example, 103 102 can be divided by 2: 103 102 / 2 = 51 551.
For 103 102 to be a prime number, it would have been required that 103 102 has only two divisors, i.e., itself and 1.
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103 102 is an even number, because it is evenly divisible by 2: 103 102 / 2 = 51 551.
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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 103 102 is about 321.095.
Thus, the square root of 103 102 is not an integer, and therefore 103 102 is not a square number.
The square of a number (here 103 102) is the result of the product of this number (103 102) by itself (i.e., 103 102 × 103 102); the square of 103 102 is sometimes called "raising 103 102 to the power 2", or "103 102 squared".
The square of 103 102 is 10 630 022 404 because 103 102 × 103 102 = 103 1022 = 10 630 022 404.
As a consequence, 103 102 is the square root of 10 630 022 404.
The multiples of 103 102 are all integers evenly divisible by 103 102, that is all numbers such that the remainder of the division by 103 102 is zero. There are infinitely many multiples of 103 102. The smallest multiples of 103 102 are: