It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 237 423 is not a prime number.
For example, 237 423 can be divided by 3: 237 423 / 3 = 79 141.
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For 237 423 to be a prime number, it would have been required that 237 423 has only two divisors, i.e., itself and 1.
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237 423 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 237 423 is about 487.261.
Thus, the square root of 237 423 is not an integer, and therefore 237 423 is not a square number.
The square of a number (here 237 423) is the result of the product of this number (237 423) by itself (i.e., 237 423 × 237 423); the square of 237 423 is sometimes called "raising 237 423 to the power 2", or "237 423 squared".
The square of 237 423 is 56 369 680 929 because 237 423 × 237 423 = 237 4232 = 56 369 680 929.
As a consequence, 237 423 is the square root of 56 369 680 929.
The multiples of 237 423 are all integers evenly divisible by 237 423, that is all numbers such that the remainder of the division by 237 423 is zero. There are infinitely many multiples of 237 423. The smallest multiples of 237 423 are: