It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 163 013 is not a prime number.
For example, 163 013 can be divided by 17: 163 013 / 17 = 9 589.
For 163 013 to be a prime number, it would have been required that 163 013 has only two divisors, i.e., itself and 1.
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163 013 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 163 013 is about 403.749.
Thus, the square root of 163 013 is not an integer, and therefore 163 013 is not a square number.
The square of a number (here 163 013) is the result of the product of this number (163 013) by itself (i.e., 163 013 × 163 013); the square of 163 013 is sometimes called "raising 163 013 to the power 2", or "163 013 squared".
The square of 163 013 is 26 573 238 169 because 163 013 × 163 013 = 163 0132 = 26 573 238 169.
As a consequence, 163 013 is the square root of 26 573 238 169.
The multiples of 163 013 are all integers evenly divisible by 163 013, that is all numbers such that the remainder of the division by 163 013 is zero. There are infinitely many multiples of 163 013. The smallest multiples of 163 013 are: