It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 102 is not a prime number.
For example, 240 102 can be divided by 2: 240 102 / 2 = 120 051.
For 240 102 to be a prime number, it would have been required that 240 102 has only two divisors, i.e., itself and 1.
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240 102 is an even number, because it is evenly divisible by 2: 240 102 / 2 = 120 051.
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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 240 102 is about 490.002.
Thus, the square root of 240 102 is not an integer, and therefore 240 102 is not a square number.
The square of a number (here 240 102) is the result of the product of this number (240 102) by itself (i.e., 240 102 × 240 102); the square of 240 102 is sometimes called "raising 240 102 to the power 2", or "240 102 squared".
The square of 240 102 is 57 648 970 404 because 240 102 × 240 102 = 240 1022 = 57 648 970 404.
As a consequence, 240 102 is the square root of 57 648 970 404.
The multiples of 240 102 are all integers evenly divisible by 240 102, that is all numbers such that the remainder of the division by 240 102 is zero. There are infinitely many multiples of 240 102. The smallest multiples of 240 102 are: