It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 200 209 is not a prime number.
For example, 200 209 can be divided by 17: 200 209 / 17 = 11 777.
For 200 209 to be a prime number, it would have been required that 200 209 has only two divisors, i.e., itself and 1.
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200 209 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 200 209 is about 447.447.
Thus, the square root of 200 209 is not an integer, and therefore 200 209 is not a square number.
The square of a number (here 200 209) is the result of the product of this number (200 209) by itself (i.e., 200 209 × 200 209); the square of 200 209 is sometimes called "raising 200 209 to the power 2", or "200 209 squared".
The square of 200 209 is 40 083 643 681 because 200 209 × 200 209 = 200 2092 = 40 083 643 681.
As a consequence, 200 209 is the square root of 40 083 643 681.
The multiples of 200 209 are all integers evenly divisible by 200 209, that is all numbers such that the remainder of the division by 200 209 is zero. There are infinitely many multiples of 200 209. The smallest multiples of 200 209 are: