It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 216 is not a prime number.
For example, 120 216 can be divided by 2: 120 216 / 2 = 60 108.
For 120 216 to be a prime number, it would have been required that 120 216 has only two divisors, i.e., itself and 1.
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120 216 is an even number, because it is evenly divisible by 2: 120 216 / 2 = 60 108.
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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 120 216 is about 346.722.
Thus, the square root of 120 216 is not an integer, and therefore 120 216 is not a square number.
The square of a number (here 120 216) is the result of the product of this number (120 216) by itself (i.e., 120 216 × 120 216); the square of 120 216 is sometimes called "raising 120 216 to the power 2", or "120 216 squared".
The square of 120 216 is 14 451 886 656 because 120 216 × 120 216 = 120 2162 = 14 451 886 656.
As a consequence, 120 216 is the square root of 14 451 886 656.
The multiples of 120 216 are all integers evenly divisible by 120 216, that is all numbers such that the remainder of the division by 120 216 is zero. There are infinitely many multiples of 120 216. The smallest multiples of 120 216 are: