It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 130 538 is not a prime number.
For example, 130 538 can be divided by 2: 130 538 / 2 = 65 269.
For 130 538 to be a prime number, it would have been required that 130 538 has only two divisors, i.e., itself and 1.
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130 538 is an even number, because it is evenly divisible by 2: 130 538 / 2 = 65 269.
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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 130 538 is about 361.300.
Thus, the square root of 130 538 is not an integer, and therefore 130 538 is not a square number.
The square of a number (here 130 538) is the result of the product of this number (130 538) by itself (i.e., 130 538 × 130 538); the square of 130 538 is sometimes called "raising 130 538 to the power 2", or "130 538 squared".
The square of 130 538 is 17 040 169 444 because 130 538 × 130 538 = 130 5382 = 17 040 169 444.
As a consequence, 130 538 is the square root of 17 040 169 444.
The multiples of 130 538 are all integers evenly divisible by 130 538, that is all numbers such that the remainder of the division by 130 538 is zero. There are infinitely many multiples of 130 538. The smallest multiples of 130 538 are: