It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 102 702 is not a prime number.
For example, 102 702 can be divided by 2: 102 702 / 2 = 51 351.
For 102 702 to be a prime number, it would have been required that 102 702 has only two divisors, i.e., itself and 1.
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102 702 is an even number, because it is evenly divisible by 2: 102 702 / 2 = 51 351.
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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 102 702 is about 320.472.
Thus, the square root of 102 702 is not an integer, and therefore 102 702 is not a square number.
The square of a number (here 102 702) is the result of the product of this number (102 702) by itself (i.e., 102 702 × 102 702); the square of 102 702 is sometimes called "raising 102 702 to the power 2", or "102 702 squared".
The square of 102 702 is 10 547 700 804 because 102 702 × 102 702 = 102 7022 = 10 547 700 804.
As a consequence, 102 702 is the square root of 10 547 700 804.
The multiples of 102 702 are all integers evenly divisible by 102 702, that is all numbers such that the remainder of the division by 102 702 is zero. There are infinitely many multiples of 102 702. The smallest multiples of 102 702 are: