It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 38 748 is not a prime number.
For example, 38 748 can be divided by 2: 38 748 / 2 = 19 374.
For 38 748 to be a prime number, it would have been required that 38 748 has only two divisors, i.e., itself and 1.
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38 748 is an even number, because it is evenly divisible by 2: 38 748 / 2 = 19 374.
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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 38 748 is about 196.845.
Thus, the square root of 38 748 is not an integer, and therefore 38 748 is not a square number.
The square of a number (here 38 748) is the result of the product of this number (38 748) by itself (i.e., 38 748 × 38 748); the square of 38 748 is sometimes called "raising 38 748 to the power 2", or "38 748 squared".
The square of 38 748 is 1 501 407 504 because 38 748 × 38 748 = 38 7482 = 1 501 407 504.
As a consequence, 38 748 is the square root of 1 501 407 504.
The multiples of 38 748 are all integers evenly divisible by 38 748, that is all numbers such that the remainder of the division by 38 748 is zero. There are infinitely many multiples of 38 748. The smallest multiples of 38 748 are: