It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 339 109 is not a prime number.
For example, 339 109 can be divided by 31: 339 109 / 31 = 10 939.
For 339 109 to be a prime number, it would have been required that 339 109 has only two divisors, i.e., itself and 1.
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339 109 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 339 109 is about 582.331.
Thus, the square root of 339 109 is not an integer, and therefore 339 109 is not a square number.
The square of a number (here 339 109) is the result of the product of this number (339 109) by itself (i.e., 339 109 × 339 109); the square of 339 109 is sometimes called "raising 339 109 to the power 2", or "339 109 squared".
The square of 339 109 is 114 994 913 881 because 339 109 × 339 109 = 339 1092 = 114 994 913 881.
As a consequence, 339 109 is the square root of 114 994 913 881.
The multiples of 339 109 are all integers evenly divisible by 339 109, that is all numbers such that the remainder of the division by 339 109 is zero. There are infinitely many multiples of 339 109. The smallest multiples of 339 109 are: