It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 998 463 is not a prime number.
For example, 998 463 can be divided by 3: 998 463 / 3 = 332 821.
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For 998 463 to be a prime number, it would have been required that 998 463 has only two divisors, i.e., itself and 1.
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998 463 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 998 463 is about 999.231.
Thus, the square root of 998 463 is not an integer, and therefore 998 463 is not a square number.
The square of a number (here 998 463) is the result of the product of this number (998 463) by itself (i.e., 998 463 × 998 463); the square of 998 463 is sometimes called "raising 998 463 to the power 2", or "998 463 squared".
The square of 998 463 is 996 928 362 369 because 998 463 × 998 463 = 998 4632 = 996 928 362 369.
As a consequence, 998 463 is the square root of 996 928 362 369.
The multiples of 998 463 are all integers evenly divisible by 998 463, that is all numbers such that the remainder of the division by 998 463 is zero. There are infinitely many multiples of 998 463. The smallest multiples of 998 463 are: