It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 238 102 is not a prime number.
For example, 238 102 can be divided by 2: 238 102 / 2 = 119 051.
For 238 102 to be a prime number, it would have been required that 238 102 has only two divisors, i.e., itself and 1.
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238 102 is an even number, because it is evenly divisible by 2: 238 102 / 2 = 119 051.
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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 238 102 is about 487.957.
Thus, the square root of 238 102 is not an integer, and therefore 238 102 is not a square number.
The square of a number (here 238 102) is the result of the product of this number (238 102) by itself (i.e., 238 102 × 238 102); the square of 238 102 is sometimes called "raising 238 102 to the power 2", or "238 102 squared".
The square of 238 102 is 56 692 562 404 because 238 102 × 238 102 = 238 1022 = 56 692 562 404.
As a consequence, 238 102 is the square root of 56 692 562 404.
The multiples of 238 102 are all integers evenly divisible by 238 102, that is all numbers such that the remainder of the division by 238 102 is zero. There are infinitely many multiples of 238 102. The smallest multiples of 238 102 are: