It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 498 374 is not a prime number.
For example, 498 374 can be divided by 2: 498 374 / 2 = 249 187.
For 498 374 to be a prime number, it would have been required that 498 374 has only two divisors, i.e., itself and 1.
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498 374 is an even number, because it is evenly divisible by 2: 498 374 / 2 = 249 187.
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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 498 374 is about 705.956.
Thus, the square root of 498 374 is not an integer, and therefore 498 374 is not a square number.
The square of a number (here 498 374) is the result of the product of this number (498 374) by itself (i.e., 498 374 × 498 374); the square of 498 374 is sometimes called "raising 498 374 to the power 2", or "498 374 squared".
The square of 498 374 is 248 376 643 876 because 498 374 × 498 374 = 498 3742 = 248 376 643 876.
As a consequence, 498 374 is the square root of 248 376 643 876.
The multiples of 498 374 are all integers evenly divisible by 498 374, that is all numbers such that the remainder of the division by 498 374 is zero. There are infinitely many multiples of 498 374. The smallest multiples of 498 374 are: