It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 102 104 is not a prime number.
For example, 102 104 can be divided by 2: 102 104 / 2 = 51 052.
For 102 104 to be a prime number, it would have been required that 102 104 has only two divisors, i.e., itself and 1.
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102 104 is an even number, because it is evenly divisible by 2: 102 104 / 2 = 51 052.
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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 102 104 is about 319.537.
Thus, the square root of 102 104 is not an integer, and therefore 102 104 is not a square number.
The square of a number (here 102 104) is the result of the product of this number (102 104) by itself (i.e., 102 104 × 102 104); the square of 102 104 is sometimes called "raising 102 104 to the power 2", or "102 104 squared".
The square of 102 104 is 10 425 226 816 because 102 104 × 102 104 = 102 1042 = 10 425 226 816.
As a consequence, 102 104 is the square root of 10 425 226 816.
The multiples of 102 104 are all integers evenly divisible by 102 104, that is all numbers such that the remainder of the division by 102 104 is zero. There are infinitely many multiples of 102 104. The smallest multiples of 102 104 are: