It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 144 742 is not a prime number.
For example, 144 742 can be divided by 2: 144 742 / 2 = 72 371.
For 144 742 to be a prime number, it would have been required that 144 742 has only two divisors, i.e., itself and 1.
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144 742 is an even number, because it is evenly divisible by 2: 144 742 / 2 = 72 371.
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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 144 742 is about 380.450.
Thus, the square root of 144 742 is not an integer, and therefore 144 742 is not a square number.
The square of a number (here 144 742) is the result of the product of this number (144 742) by itself (i.e., 144 742 × 144 742); the square of 144 742 is sometimes called "raising 144 742 to the power 2", or "144 742 squared".
The square of 144 742 is 20 950 246 564 because 144 742 × 144 742 = 144 7422 = 20 950 246 564.
As a consequence, 144 742 is the square root of 20 950 246 564.
The multiples of 144 742 are all integers evenly divisible by 144 742, that is all numbers such that the remainder of the division by 144 742 is zero. There are infinitely many multiples of 144 742. The smallest multiples of 144 742 are: