It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 363 243 is not a prime number.
For example, 363 243 can be divided by 3: 363 243 / 3 = 121 081.
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For 363 243 to be a prime number, it would have been required that 363 243 has only two divisors, i.e., itself and 1.
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363 243 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 363 243 is about 602.696.
Thus, the square root of 363 243 is not an integer, and therefore 363 243 is not a square number.
The square of a number (here 363 243) is the result of the product of this number (363 243) by itself (i.e., 363 243 × 363 243); the square of 363 243 is sometimes called "raising 363 243 to the power 2", or "363 243 squared".
The square of 363 243 is 131 945 477 049 because 363 243 × 363 243 = 363 2432 = 131 945 477 049.
As a consequence, 363 243 is the square root of 131 945 477 049.
The multiples of 363 243 are all integers evenly divisible by 363 243, that is all numbers such that the remainder of the division by 363 243 is zero. There are infinitely many multiples of 363 243. The smallest multiples of 363 243 are: