It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 121 329 is not a prime number.
For example, 121 329 can be divided by 3: 121 329 / 3 = 40 443.
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For 121 329 to be a prime number, it would have been required that 121 329 has only two divisors, i.e., itself and 1.
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121 329 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 121 329 is about 348.323.
Thus, the square root of 121 329 is not an integer, and therefore 121 329 is not a square number.
The square of a number (here 121 329) is the result of the product of this number (121 329) by itself (i.e., 121 329 × 121 329); the square of 121 329 is sometimes called "raising 121 329 to the power 2", or "121 329 squared".
The square of 121 329 is 14 720 726 241 because 121 329 × 121 329 = 121 3292 = 14 720 726 241.
As a consequence, 121 329 is the square root of 14 720 726 241.
The multiples of 121 329 are all integers evenly divisible by 121 329, that is all numbers such that the remainder of the division by 121 329 is zero. There are infinitely many multiples of 121 329. The smallest multiples of 121 329 are: