It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 538 708 is not a prime number.
For example, 538 708 can be divided by 2: 538 708 / 2 = 269 354.
For 538 708 to be a prime number, it would have been required that 538 708 has only two divisors, i.e., itself and 1.
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538 708 is an even number, because it is evenly divisible by 2: 538 708 / 2 = 269 354.
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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 538 708 is about 733.967.
Thus, the square root of 538 708 is not an integer, and therefore 538 708 is not a square number.
The square of a number (here 538 708) is the result of the product of this number (538 708) by itself (i.e., 538 708 × 538 708); the square of 538 708 is sometimes called "raising 538 708 to the power 2", or "538 708 squared".
The square of 538 708 is 290 206 309 264 because 538 708 × 538 708 = 538 7082 = 290 206 309 264.
As a consequence, 538 708 is the square root of 290 206 309 264.
The multiples of 538 708 are all integers evenly divisible by 538 708, that is all numbers such that the remainder of the division by 538 708 is zero. There are infinitely many multiples of 538 708. The smallest multiples of 538 708 are: