It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 243 737 is not a prime number.
For example, 243 737 can be divided by 13: 243 737 / 13 = 18 749.
For 243 737 to be a prime number, it would have been required that 243 737 has only two divisors, i.e., itself and 1.
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243 737 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 243 737 is about 493.697.
Thus, the square root of 243 737 is not an integer, and therefore 243 737 is not a square number.
The square of a number (here 243 737) is the result of the product of this number (243 737) by itself (i.e., 243 737 × 243 737); the square of 243 737 is sometimes called "raising 243 737 to the power 2", or "243 737 squared".
The square of 243 737 is 59 407 725 169 because 243 737 × 243 737 = 243 7372 = 59 407 725 169.
As a consequence, 243 737 is the square root of 59 407 725 169.
The multiples of 243 737 are all integers evenly divisible by 243 737, that is all numbers such that the remainder of the division by 243 737 is zero. There are infinitely many multiples of 243 737. The smallest multiples of 243 737 are: