It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 121 118 is not a prime number.
For example, 121 118 can be divided by 2: 121 118 / 2 = 60 559.
For 121 118 to be a prime number, it would have been required that 121 118 has only two divisors, i.e., itself and 1.
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121 118 is an even number, because it is evenly divisible by 2: 121 118 / 2 = 60 559.
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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 121 118 is about 348.020.
Thus, the square root of 121 118 is not an integer, and therefore 121 118 is not a square number.
The square of a number (here 121 118) is the result of the product of this number (121 118) by itself (i.e., 121 118 × 121 118); the square of 121 118 is sometimes called "raising 121 118 to the power 2", or "121 118 squared".
The square of 121 118 is 14 669 569 924 because 121 118 × 121 118 = 121 1182 = 14 669 569 924.
As a consequence, 121 118 is the square root of 14 669 569 924.
The multiples of 121 118 are all integers evenly divisible by 121 118, that is all numbers such that the remainder of the division by 121 118 is zero. There are infinitely many multiples of 121 118. The smallest multiples of 121 118 are: