It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 112 209 is not a prime number.
For example, 112 209 can be divided by 3: 112 209 / 3 = 37 403.
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For 112 209 to be a prime number, it would have been required that 112 209 has only two divisors, i.e., itself and 1.
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112 209 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 112 209 is about 334.976.
Thus, the square root of 112 209 is not an integer, and therefore 112 209 is not a square number.
The square of a number (here 112 209) is the result of the product of this number (112 209) by itself (i.e., 112 209 × 112 209); the square of 112 209 is sometimes called "raising 112 209 to the power 2", or "112 209 squared".
The square of 112 209 is 12 590 859 681 because 112 209 × 112 209 = 112 2092 = 12 590 859 681.
As a consequence, 112 209 is the square root of 12 590 859 681.
The multiples of 112 209 are all integers evenly divisible by 112 209, that is all numbers such that the remainder of the division by 112 209 is zero. There are infinitely many multiples of 112 209. The smallest multiples of 112 209 are: