It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 118 109 is not a prime number.
For example, 118 109 can be divided by 83: 118 109 / 83 = 1 423.
For 118 109 to be a prime number, it would have been required that 118 109 has only two divisors, i.e., itself and 1.
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118 109 is an odd number, because it is not evenly divisible by 2.
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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 118 109 is about 343.670.
Thus, the square root of 118 109 is not an integer, and therefore 118 109 is not a square number.
The square of a number (here 118 109) is the result of the product of this number (118 109) by itself (i.e., 118 109 × 118 109); the square of 118 109 is sometimes called "raising 118 109 to the power 2", or "118 109 squared".
The square of 118 109 is 13 949 735 881 because 118 109 × 118 109 = 118 1092 = 13 949 735 881.
As a consequence, 118 109 is the square root of 13 949 735 881.
The multiples of 118 109 are all integers evenly divisible by 118 109, that is all numbers such that the remainder of the division by 118 109 is zero. There are infinitely many multiples of 118 109. The smallest multiples of 118 109 are: