It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 550 498 is not a prime number.
For example, 550 498 can be divided by 2: 550 498 / 2 = 275 249.
For 550 498 to be a prime number, it would have been required that 550 498 has only two divisors, i.e., itself and 1.
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550 498 is an even number, because it is evenly divisible by 2: 550 498 / 2 = 275 249.
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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 550 498 is about 741.956.
Thus, the square root of 550 498 is not an integer, and therefore 550 498 is not a square number.
The square of a number (here 550 498) is the result of the product of this number (550 498) by itself (i.e., 550 498 × 550 498); the square of 550 498 is sometimes called "raising 550 498 to the power 2", or "550 498 squared".
The square of 550 498 is 303 048 048 004 because 550 498 × 550 498 = 550 4982 = 303 048 048 004.
As a consequence, 550 498 is the square root of 303 048 048 004.
The multiples of 550 498 are all integers evenly divisible by 550 498, that is all numbers such that the remainder of the division by 550 498 is zero. There are infinitely many multiples of 550 498. The smallest multiples of 550 498 are: