It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 130 506 is not a prime number.
For example, 130 506 can be divided by 2: 130 506 / 2 = 65 253.
For 130 506 to be a prime number, it would have been required that 130 506 has only two divisors, i.e., itself and 1.
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130 506 is an even number, because it is evenly divisible by 2: 130 506 / 2 = 65 253.
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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 130 506 is about 361.256.
Thus, the square root of 130 506 is not an integer, and therefore 130 506 is not a square number.
The square of a number (here 130 506) is the result of the product of this number (130 506) by itself (i.e., 130 506 × 130 506); the square of 130 506 is sometimes called "raising 130 506 to the power 2", or "130 506 squared".
The square of 130 506 is 17 031 816 036 because 130 506 × 130 506 = 130 5062 = 17 031 816 036.
As a consequence, 130 506 is the square root of 17 031 816 036.
The multiples of 130 506 are all integers evenly divisible by 130 506, that is all numbers such that the remainder of the division by 130 506 is zero. There are infinitely many multiples of 130 506. The smallest multiples of 130 506 are: