It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 23 237 is not a prime number.
For example, 23 237 can be divided by 19: 23 237 / 19 = 1 223.
For 23 237 to be a prime number, it would have been required that 23 237 has only two divisors, i.e., itself and 1.
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23 237 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 23 237 is about 152.437.
Thus, the square root of 23 237 is not an integer, and therefore 23 237 is not a square number.
The square of a number (here 23 237) is the result of the product of this number (23 237) by itself (i.e., 23 237 × 23 237); the square of 23 237 is sometimes called "raising 23 237 to the power 2", or "23 237 squared".
The square of 23 237 is 539 958 169 because 23 237 × 23 237 = 23 2372 = 539 958 169.
As a consequence, 23 237 is the square root of 539 958 169.
The multiples of 23 237 are all integers evenly divisible by 23 237, that is all numbers such that the remainder of the division by 23 237 is zero. There are infinitely many multiples of 23 237. The smallest multiples of 23 237 are: