It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 306 is not a prime number.
For example, 120 306 can be divided by 2: 120 306 / 2 = 60 153.
For 120 306 to be a prime number, it would have been required that 120 306 has only two divisors, i.e., itself and 1.
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120 306 is an even number, because it is evenly divisible by 2: 120 306 / 2 = 60 153.
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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 120 306 is about 346.852.
Thus, the square root of 120 306 is not an integer, and therefore 120 306 is not a square number.
The square of a number (here 120 306) is the result of the product of this number (120 306) by itself (i.e., 120 306 × 120 306); the square of 120 306 is sometimes called "raising 120 306 to the power 2", or "120 306 squared".
The square of 120 306 is 14 473 533 636 because 120 306 × 120 306 = 120 3062 = 14 473 533 636.
As a consequence, 120 306 is the square root of 14 473 533 636.
The multiples of 120 306 are all integers evenly divisible by 120 306, that is all numbers such that the remainder of the division by 120 306 is zero. There are infinitely many multiples of 120 306. The smallest multiples of 120 306 are: