It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 478 988 is not a prime number.
For example, 478 988 can be divided by 2: 478 988 / 2 = 239 494.
For 478 988 to be a prime number, it would have been required that 478 988 has only two divisors, i.e., itself and 1.
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478 988 is an even number, because it is evenly divisible by 2: 478 988 / 2 = 239 494.
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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 478 988 is about 692.090.
Thus, the square root of 478 988 is not an integer, and therefore 478 988 is not a square number.
The square of a number (here 478 988) is the result of the product of this number (478 988) by itself (i.e., 478 988 × 478 988); the square of 478 988 is sometimes called "raising 478 988 to the power 2", or "478 988 squared".
The square of 478 988 is 229 429 504 144 because 478 988 × 478 988 = 478 9882 = 229 429 504 144.
As a consequence, 478 988 is the square root of 229 429 504 144.
The multiples of 478 988 are all integers evenly divisible by 478 988, that is all numbers such that the remainder of the division by 478 988 is zero. There are infinitely many multiples of 478 988. The smallest multiples of 478 988 are: