It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 238 702 is not a prime number.
For example, 238 702 can be divided by 2: 238 702 / 2 = 119 351.
For 238 702 to be a prime number, it would have been required that 238 702 has only two divisors, i.e., itself and 1.
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238 702 is an even number, because it is evenly divisible by 2: 238 702 / 2 = 119 351.
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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 238 702 is about 488.571.
Thus, the square root of 238 702 is not an integer, and therefore 238 702 is not a square number.
The square of a number (here 238 702) is the result of the product of this number (238 702) by itself (i.e., 238 702 × 238 702); the square of 238 702 is sometimes called "raising 238 702 to the power 2", or "238 702 squared".
The square of 238 702 is 56 978 644 804 because 238 702 × 238 702 = 238 7022 = 56 978 644 804.
As a consequence, 238 702 is the square root of 56 978 644 804.
The multiples of 238 702 are all integers evenly divisible by 238 702, that is all numbers such that the remainder of the division by 238 702 is zero. There are infinitely many multiples of 238 702. The smallest multiples of 238 702 are: