It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 242 102 is not a prime number.
For example, 242 102 can be divided by 2: 242 102 / 2 = 121 051.
For 242 102 to be a prime number, it would have been required that 242 102 has only two divisors, i.e., itself and 1.
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242 102 is an even number, because it is evenly divisible by 2: 242 102 / 2 = 121 051.
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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 242 102 is about 492.039.
Thus, the square root of 242 102 is not an integer, and therefore 242 102 is not a square number.
The square of a number (here 242 102) is the result of the product of this number (242 102) by itself (i.e., 242 102 × 242 102); the square of 242 102 is sometimes called "raising 242 102 to the power 2", or "242 102 squared".
The square of 242 102 is 58 613 378 404 because 242 102 × 242 102 = 242 1022 = 58 613 378 404.
As a consequence, 242 102 is the square root of 58 613 378 404.
The multiples of 242 102 are all integers evenly divisible by 242 102, that is all numbers such that the remainder of the division by 242 102 is zero. There are infinitely many multiples of 242 102. The smallest multiples of 242 102 are: