It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 260 102 is not a prime number.
For example, 260 102 can be divided by 2: 260 102 / 2 = 130 051.
For 260 102 to be a prime number, it would have been required that 260 102 has only two divisors, i.e., itself and 1.
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260 102 is an even number, because it is evenly divisible by 2: 260 102 / 2 = 130 051.
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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 260 102 is about 510.002.
Thus, the square root of 260 102 is not an integer, and therefore 260 102 is not a square number.
The square of a number (here 260 102) is the result of the product of this number (260 102) by itself (i.e., 260 102 × 260 102); the square of 260 102 is sometimes called "raising 260 102 to the power 2", or "260 102 squared".
The square of 260 102 is 67 653 050 404 because 260 102 × 260 102 = 260 1022 = 67 653 050 404.
As a consequence, 260 102 is the square root of 67 653 050 404.
The multiples of 260 102 are all integers evenly divisible by 260 102, that is all numbers such that the remainder of the division by 260 102 is zero. There are infinitely many multiples of 260 102. The smallest multiples of 260 102 are: