It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 144 129 is not a prime number.
For example, 144 129 can be divided by 3: 144 129 / 3 = 48 043.
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For 144 129 to be a prime number, it would have been required that 144 129 has only two divisors, i.e., itself and 1.
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144 129 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 144 129 is about 379.643.
Thus, the square root of 144 129 is not an integer, and therefore 144 129 is not a square number.
The square of a number (here 144 129) is the result of the product of this number (144 129) by itself (i.e., 144 129 × 144 129); the square of 144 129 is sometimes called "raising 144 129 to the power 2", or "144 129 squared".
The square of 144 129 is 20 773 168 641 because 144 129 × 144 129 = 144 1292 = 20 773 168 641.
As a consequence, 144 129 is the square root of 20 773 168 641.
The multiples of 144 129 are all integers evenly divisible by 144 129, that is all numbers such that the remainder of the division by 144 129 is zero. There are infinitely many multiples of 144 129. The smallest multiples of 144 129 are: