It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 40 188 is not a prime number.
For example, 40 188 can be divided by 2: 40 188 / 2 = 20 094.
For 40 188 to be a prime number, it would have been required that 40 188 has only two divisors, i.e., itself and 1.
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40 188 is an even number, because it is evenly divisible by 2: 40 188 / 2 = 20 094.
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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 40 188 is about 200.469.
Thus, the square root of 40 188 is not an integer, and therefore 40 188 is not a square number.
The square of a number (here 40 188) is the result of the product of this number (40 188) by itself (i.e., 40 188 × 40 188); the square of 40 188 is sometimes called "raising 40 188 to the power 2", or "40 188 squared".
The square of 40 188 is 1 615 075 344 because 40 188 × 40 188 = 40 1882 = 1 615 075 344.
As a consequence, 40 188 is the square root of 1 615 075 344.
The multiples of 40 188 are all integers evenly divisible by 40 188, that is all numbers such that the remainder of the division by 40 188 is zero. There are infinitely many multiples of 40 188. The smallest multiples of 40 188 are: