It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 298 214 is not a prime number.
For example, 298 214 can be divided by 2: 298 214 / 2 = 149 107.
For 298 214 to be a prime number, it would have been required that 298 214 has only two divisors, i.e., itself and 1.
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298 214 is an even number, because it is evenly divisible by 2: 298 214 / 2 = 149 107.
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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 298 214 is about 546.090.
Thus, the square root of 298 214 is not an integer, and therefore 298 214 is not a square number.
The square of a number (here 298 214) is the result of the product of this number (298 214) by itself (i.e., 298 214 × 298 214); the square of 298 214 is sometimes called "raising 298 214 to the power 2", or "298 214 squared".
The square of 298 214 is 88 931 589 796 because 298 214 × 298 214 = 298 2142 = 88 931 589 796.
As a consequence, 298 214 is the square root of 88 931 589 796.
The multiples of 298 214 are all integers evenly divisible by 298 214, that is all numbers such that the remainder of the division by 298 214 is zero. There are infinitely many multiples of 298 214. The smallest multiples of 298 214 are: