It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 4 009 008 is not a prime number.
For example, 4 009 008 can be divided by 2: 4 009 008 / 2 = 2 004 504.
For 4 009 008 to be a prime number, it would have been required that 4 009 008 has only two divisors, i.e., itself and 1.
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4 009 008 is an even number, because it is evenly divisible by 2: 4 009 008 / 2 = 2 004 504.
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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 4 009 008 is about 2 002.251.
Thus, the square root of 4 009 008 is not an integer, and therefore 4 009 008 is not a square number.
The square of a number (here 4 009 008) is the result of the product of this number (4 009 008) by itself (i.e., 4 009 008 × 4 009 008); the square of 4 009 008 is sometimes called "raising 4 009 008 to the power 2", or "4 009 008 squared".
The square of 4 009 008 is 16 072 145 144 064 because 4 009 008 × 4 009 008 = 4 009 0082 = 16 072 145 144 064.
As a consequence, 4 009 008 is the square root of 16 072 145 144 064.
The multiples of 4 009 008 are all integers evenly divisible by 4 009 008, that is all numbers such that the remainder of the division by 4 009 008 is zero. There are infinitely many multiples of 4 009 008. The smallest multiples of 4 009 008 are: