It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 299 742 is not a prime number.
For example, 299 742 can be divided by 2: 299 742 / 2 = 149 871.
For 299 742 to be a prime number, it would have been required that 299 742 has only two divisors, i.e., itself and 1.
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299 742 is an even number, because it is evenly divisible by 2: 299 742 / 2 = 149 871.
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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 299 742 is about 547.487.
Thus, the square root of 299 742 is not an integer, and therefore 299 742 is not a square number.
The square of a number (here 299 742) is the result of the product of this number (299 742) by itself (i.e., 299 742 × 299 742); the square of 299 742 is sometimes called "raising 299 742 to the power 2", or "299 742 squared".
The square of 299 742 is 89 845 266 564 because 299 742 × 299 742 = 299 7422 = 89 845 266 564.
As a consequence, 299 742 is the square root of 89 845 266 564.
The multiples of 299 742 are all integers evenly divisible by 299 742, that is all numbers such that the remainder of the division by 299 742 is zero. There are infinitely many multiples of 299 742. The smallest multiples of 299 742 are: