It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 130 609 is not a prime number.
For example, 130 609 can be divided by 211: 130 609 / 211 = 619.
For 130 609 to be a prime number, it would have been required that 130 609 has only two divisors, i.e., itself and 1.
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130 609 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 130 609 is about 361.399.
Thus, the square root of 130 609 is not an integer, and therefore 130 609 is not a square number.
The square of a number (here 130 609) is the result of the product of this number (130 609) by itself (i.e., 130 609 × 130 609); the square of 130 609 is sometimes called "raising 130 609 to the power 2", or "130 609 squared".
The square of 130 609 is 17 058 710 881 because 130 609 × 130 609 = 130 6092 = 17 058 710 881.
As a consequence, 130 609 is the square root of 17 058 710 881.
The multiples of 130 609 are all integers evenly divisible by 130 609, that is all numbers such that the remainder of the division by 130 609 is zero. There are infinitely many multiples of 130 609. The smallest multiples of 130 609 are: