It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 121 018 is not a prime number.
For example, 121 018 can be divided by 2: 121 018 / 2 = 60 509.
For 121 018 to be a prime number, it would have been required that 121 018 has only two divisors, i.e., itself and 1.
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121 018 is an even number, because it is evenly divisible by 2: 121 018 / 2 = 60 509.
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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 121 018 is about 347.876.
Thus, the square root of 121 018 is not an integer, and therefore 121 018 is not a square number.
The square of a number (here 121 018) is the result of the product of this number (121 018) by itself (i.e., 121 018 × 121 018); the square of 121 018 is sometimes called "raising 121 018 to the power 2", or "121 018 squared".
The square of 121 018 is 14 645 356 324 because 121 018 × 121 018 = 121 0182 = 14 645 356 324.
As a consequence, 121 018 is the square root of 14 645 356 324.
The multiples of 121 018 are all integers evenly divisible by 121 018, that is all numbers such that the remainder of the division by 121 018 is zero. There are infinitely many multiples of 121 018. The smallest multiples of 121 018 are: