It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 20 329 is not a prime number.
For example, 20 329 can be divided by 29: 20 329 / 29 = 701.
For 20 329 to be a prime number, it would have been required that 20 329 has only two divisors, i.e., itself and 1.
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20 329 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 20 329 is about 142.580.
Thus, the square root of 20 329 is not an integer, and therefore 20 329 is not a square number.
The square of a number (here 20 329) is the result of the product of this number (20 329) by itself (i.e., 20 329 × 20 329); the square of 20 329 is sometimes called "raising 20 329 to the power 2", or "20 329 squared".
The square of 20 329 is 413 268 241 because 20 329 × 20 329 = 20 3292 = 413 268 241.
As a consequence, 20 329 is the square root of 413 268 241.
The multiples of 20 329 are all integers evenly divisible by 20 329, that is all numbers such that the remainder of the division by 20 329 is zero. There are infinitely many multiples of 20 329. The smallest multiples of 20 329 are: