It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 298 118 is not a prime number.
For example, 298 118 can be divided by 2: 298 118 / 2 = 149 059.
For 298 118 to be a prime number, it would have been required that 298 118 has only two divisors, i.e., itself and 1.
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298 118 is an even number, because it is evenly divisible by 2: 298 118 / 2 = 149 059.
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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 298 118 is about 546.002.
Thus, the square root of 298 118 is not an integer, and therefore 298 118 is not a square number.
The square of a number (here 298 118) is the result of the product of this number (298 118) by itself (i.e., 298 118 × 298 118); the square of 298 118 is sometimes called "raising 298 118 to the power 2", or "298 118 squared".
The square of 298 118 is 88 874 341 924 because 298 118 × 298 118 = 298 1182 = 88 874 341 924.
As a consequence, 298 118 is the square root of 88 874 341 924.
The multiples of 298 118 are all integers evenly divisible by 298 118, that is all numbers such that the remainder of the division by 298 118 is zero. There are infinitely many multiples of 298 118. The smallest multiples of 298 118 are: