It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 40 067 is not a prime number.
For example, 40 067 can be divided by 103: 40 067 / 103 = 389.
For 40 067 to be a prime number, it would have been required that 40 067 has only two divisors, i.e., itself and 1.
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40 067 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 40 067 is about 200.167.
Thus, the square root of 40 067 is not an integer, and therefore 40 067 is not a square number.
The square of a number (here 40 067) is the result of the product of this number (40 067) by itself (i.e., 40 067 × 40 067); the square of 40 067 is sometimes called "raising 40 067 to the power 2", or "40 067 squared".
The square of 40 067 is 1 605 364 489 because 40 067 × 40 067 = 40 0672 = 1 605 364 489.
As a consequence, 40 067 is the square root of 1 605 364 489.
The multiples of 40 067 are all integers evenly divisible by 40 067, that is all numbers such that the remainder of the division by 40 067 is zero. There are infinitely many multiples of 40 067. The smallest multiples of 40 067 are: