It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 40 011 is not a prime number.
For example, 40 011 can be divided by 3: 40 011 / 3 = 13 337.
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For 40 011 to be a prime number, it would have been required that 40 011 has only two divisors, i.e., itself and 1.
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40 011 is an odd number, because it is not evenly divisible by 2.
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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 40 011 is about 200.027.
Thus, the square root of 40 011 is not an integer, and therefore 40 011 is not a square number.
The square of a number (here 40 011) is the result of the product of this number (40 011) by itself (i.e., 40 011 × 40 011); the square of 40 011 is sometimes called "raising 40 011 to the power 2", or "40 011 squared".
The square of 40 011 is 1 600 880 121 because 40 011 × 40 011 = 40 0112 = 1 600 880 121.
As a consequence, 40 011 is the square root of 1 600 880 121.
The multiples of 40 011 are all integers evenly divisible by 40 011, that is all numbers such that the remainder of the division by 40 011 is zero. There are infinitely many multiples of 40 011. The smallest multiples of 40 011 are: