It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 998 464 274 is not a prime number.
For example, 998 464 274 can be divided by 2: 998 464 274 / 2 = 499 232 137.
For 998 464 274 to be a prime number, it would have been required that 998 464 274 has only two divisors, i.e., itself and 1.
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998 464 274 is an even number, because it is evenly divisible by 2: 998 464 274 / 2 = 499 232 137.
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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 998 464 274 is about 31 598.485.
Thus, the square root of 998 464 274 is not an integer, and therefore 998 464 274 is not a square number.
The square of a number (here 998 464 274) is the result of the product of this number (998 464 274) by itself (i.e., 998 464 274 × 998 464 274); the square of 998 464 274 is sometimes called "raising 998 464 274 to the power 2", or "998 464 274 squared".
The square of 998 464 274 is 996 930 906 454 347 136 because 998 464 274 × 998 464 274 = 998 464 2742 = 996 930 906 454 347 136.
As a consequence, 998 464 274 is the square root of 996 930 906 454 347 136.
998 464 274 is a number with 9 digits.
The multiples of 998 464 274 are all integers evenly divisible by 998 464 274, that is all numbers such that the remainder of the division by 998 464 274 is zero. There are infinitely many multiples of 998 464 274. The smallest multiples of 998 464 274 are: