It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 998 049 is not a prime number.
For example, 998 049 can be divided by 3: 998 049 / 3 = 332 683.
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For 998 049 to be a prime number, it would have been required that 998 049 has only two divisors, i.e., itself and 1.
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998 049 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 998 049 is about 999.024.
Thus, the square root of 998 049 is not an integer, and therefore 998 049 is not a square number.
The square of a number (here 998 049) is the result of the product of this number (998 049) by itself (i.e., 998 049 × 998 049); the square of 998 049 is sometimes called "raising 998 049 to the power 2", or "998 049 squared".
The square of 998 049 is 996 101 806 401 because 998 049 × 998 049 = 998 0492 = 996 101 806 401.
As a consequence, 998 049 is the square root of 996 101 806 401.
The multiples of 998 049 are all integers evenly divisible by 998 049, that is all numbers such that the remainder of the division by 998 049 is zero. There are infinitely many multiples of 998 049. The smallest multiples of 998 049 are: