It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 998 678 is not a prime number.
For example, 998 678 can be divided by 2: 998 678 / 2 = 499 339.
For 998 678 to be a prime number, it would have been required that 998 678 has only two divisors, i.e., itself and 1.
Find out more:
998 678 is an even number, because it is evenly divisible by 2: 998 678 / 2 = 499 339.
Find out more:
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 998 678 is about 999.339.
Thus, the square root of 998 678 is not an integer, and therefore 998 678 is not a square number.
The square of a number (here 998 678) is the result of the product of this number (998 678) by itself (i.e., 998 678 × 998 678); the square of 998 678 is sometimes called "raising 998 678 to the power 2", or "998 678 squared".
The square of 998 678 is 997 357 747 684 because 998 678 × 998 678 = 998 6782 = 997 357 747 684.
As a consequence, 998 678 is the square root of 997 357 747 684.
The multiples of 998 678 are all integers evenly divisible by 998 678, that is all numbers such that the remainder of the division by 998 678 is zero. There are infinitely many multiples of 998 678. The smallest multiples of 998 678 are: