It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 159 144 is not a prime number.
For example, 159 144 can be divided by 2: 159 144 / 2 = 79 572.
For 159 144 to be a prime number, it would have been required that 159 144 has only two divisors, i.e., itself and 1.
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159 144 is an even number, because it is evenly divisible by 2: 159 144 / 2 = 79 572.
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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 159 144 is about 398.929.
Thus, the square root of 159 144 is not an integer, and therefore 159 144 is not a square number.
The square of a number (here 159 144) is the result of the product of this number (159 144) by itself (i.e., 159 144 × 159 144); the square of 159 144 is sometimes called "raising 159 144 to the power 2", or "159 144 squared".
The square of 159 144 is 25 326 812 736 because 159 144 × 159 144 = 159 1442 = 25 326 812 736.
As a consequence, 159 144 is the square root of 25 326 812 736.
The multiples of 159 144 are all integers evenly divisible by 159 144, that is all numbers such that the remainder of the division by 159 144 is zero. There are infinitely many multiples of 159 144. The smallest multiples of 159 144 are: