It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 118 is not a prime number.
For example, 120 118 can be divided by 2: 120 118 / 2 = 60 059.
For 120 118 to be a prime number, it would have been required that 120 118 has only two divisors, i.e., itself and 1.
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120 118 is an even number, because it is evenly divisible by 2: 120 118 / 2 = 60 059.
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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 120 118 is about 346.580.
Thus, the square root of 120 118 is not an integer, and therefore 120 118 is not a square number.
The square of a number (here 120 118) is the result of the product of this number (120 118) by itself (i.e., 120 118 × 120 118); the square of 120 118 is sometimes called "raising 120 118 to the power 2", or "120 118 squared".
The square of 120 118 is 14 428 333 924 because 120 118 × 120 118 = 120 1182 = 14 428 333 924.
As a consequence, 120 118 is the square root of 14 428 333 924.
The multiples of 120 118 are all integers evenly divisible by 120 118, that is all numbers such that the remainder of the division by 120 118 is zero. There are infinitely many multiples of 120 118. The smallest multiples of 120 118 are: