It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 163 738 is not a prime number.
For example, 163 738 can be divided by 2: 163 738 / 2 = 81 869.
For 163 738 to be a prime number, it would have been required that 163 738 has only two divisors, i.e., itself and 1.
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163 738 is an even number, because it is evenly divisible by 2: 163 738 / 2 = 81 869.
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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 163 738 is about 404.646.
Thus, the square root of 163 738 is not an integer, and therefore 163 738 is not a square number.
The square of a number (here 163 738) is the result of the product of this number (163 738) by itself (i.e., 163 738 × 163 738); the square of 163 738 is sometimes called "raising 163 738 to the power 2", or "163 738 squared".
The square of 163 738 is 26 810 132 644 because 163 738 × 163 738 = 163 7382 = 26 810 132 644.
As a consequence, 163 738 is the square root of 26 810 132 644.
The multiples of 163 738 are all integers evenly divisible by 163 738, that is all numbers such that the remainder of the division by 163 738 is zero. There are infinitely many multiples of 163 738. The smallest multiples of 163 738 are: