It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 41 209 is not a prime number.
For example, 41 209 can be divided by 7: 41 209 / 7 = 5 887.
For 41 209 to be a prime number, it would have been required that 41 209 has only two divisors, i.e., itself and 1.
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41 209 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 41 209 is 203.
Therefore, the square root of 41 209 is an integer, and as a consequence 41 209 is a perfect square.
The square of a number (here 41 209) is the result of the product of this number (41 209) by itself (i.e., 41 209 × 41 209); the square of 41 209 is sometimes called "raising 41 209 to the power 2", or "41 209 squared".
The square of 41 209 is 1 698 181 681 because 41 209 × 41 209 = 41 2092 = 1 698 181 681.
As a consequence, 41 209 is the square root of 1 698 181 681.
The multiples of 41 209 are all integers evenly divisible by 41 209, that is all numbers such that the remainder of the division by 41 209 is zero. There are infinitely many multiples of 41 209. The smallest multiples of 41 209 are: