It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 407 498 is not a prime number.
For example, 407 498 can be divided by 2: 407 498 / 2 = 203 749.
For 407 498 to be a prime number, it would have been required that 407 498 has only two divisors, i.e., itself and 1.
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407 498 is an even number, because it is evenly divisible by 2: 407 498 / 2 = 203 749.
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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 407 498 is about 638.356.
Thus, the square root of 407 498 is not an integer, and therefore 407 498 is not a square number.
The square of a number (here 407 498) is the result of the product of this number (407 498) by itself (i.e., 407 498 × 407 498); the square of 407 498 is sometimes called "raising 407 498 to the power 2", or "407 498 squared".
The square of 407 498 is 166 054 620 004 because 407 498 × 407 498 = 407 4982 = 166 054 620 004.
As a consequence, 407 498 is the square root of 166 054 620 004.
The multiples of 407 498 are all integers evenly divisible by 407 498, that is all numbers such that the remainder of the division by 407 498 is zero. There are infinitely many multiples of 407 498. The smallest multiples of 407 498 are: