It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 58 842 is not a prime number.
For example, 58 842 can be divided by 2: 58 842 / 2 = 29 421.
For 58 842 to be a prime number, it would have been required that 58 842 has only two divisors, i.e., itself and 1.
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58 842 is an even number, because it is evenly divisible by 2: 58 842 / 2 = 29 421.
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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 58 842 is about 242.574.
Thus, the square root of 58 842 is not an integer, and therefore 58 842 is not a square number.
The square of a number (here 58 842) is the result of the product of this number (58 842) by itself (i.e., 58 842 × 58 842); the square of 58 842 is sometimes called "raising 58 842 to the power 2", or "58 842 squared".
The square of 58 842 is 3 462 380 964 because 58 842 × 58 842 = 58 8422 = 3 462 380 964.
As a consequence, 58 842 is the square root of 3 462 380 964.
The multiples of 58 842 are all integers evenly divisible by 58 842, that is all numbers such that the remainder of the division by 58 842 is zero. There are infinitely many multiples of 58 842. The smallest multiples of 58 842 are: