It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 498 422 is not a prime number.
For example, 498 422 can be divided by 2: 498 422 / 2 = 249 211.
For 498 422 to be a prime number, it would have been required that 498 422 has only two divisors, i.e., itself and 1.
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498 422 is an even number, because it is evenly divisible by 2: 498 422 / 2 = 249 211.
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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 498 422 is about 705.990.
Thus, the square root of 498 422 is not an integer, and therefore 498 422 is not a square number.
The square of a number (here 498 422) is the result of the product of this number (498 422) by itself (i.e., 498 422 × 498 422); the square of 498 422 is sometimes called "raising 498 422 to the power 2", or "498 422 squared".
The square of 498 422 is 248 424 490 084 because 498 422 × 498 422 = 498 4222 = 248 424 490 084.
As a consequence, 498 422 is the square root of 248 424 490 084.
The multiples of 498 422 are all integers evenly divisible by 498 422, that is all numbers such that the remainder of the division by 498 422 is zero. There are infinitely many multiples of 498 422. The smallest multiples of 498 422 are: