It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 242 is not a prime number.
For example, 120 242 can be divided by 2: 120 242 / 2 = 60 121.
For 120 242 to be a prime number, it would have been required that 120 242 has only two divisors, i.e., itself and 1.
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120 242 is an even number, because it is evenly divisible by 2: 120 242 / 2 = 60 121.
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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 120 242 is about 346.759.
Thus, the square root of 120 242 is not an integer, and therefore 120 242 is not a square number.
The square of a number (here 120 242) is the result of the product of this number (120 242) by itself (i.e., 120 242 × 120 242); the square of 120 242 is sometimes called "raising 120 242 to the power 2", or "120 242 squared".
The square of 120 242 is 14 458 138 564 because 120 242 × 120 242 = 120 2422 = 14 458 138 564.
As a consequence, 120 242 is the square root of 14 458 138 564.
The multiples of 120 242 are all integers evenly divisible by 120 242, that is all numbers such that the remainder of the division by 120 242 is zero. There are infinitely many multiples of 120 242. The smallest multiples of 120 242 are: