It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 838 442 is not a prime number.
For example, 838 442 can be divided by 2: 838 442 / 2 = 419 221.
For 838 442 to be a prime number, it would have been required that 838 442 has only two divisors, i.e., itself and 1.
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838 442 is an even number, because it is evenly divisible by 2: 838 442 / 2 = 419 221.
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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 838 442 is about 915.665.
Thus, the square root of 838 442 is not an integer, and therefore 838 442 is not a square number.
The square of a number (here 838 442) is the result of the product of this number (838 442) by itself (i.e., 838 442 × 838 442); the square of 838 442 is sometimes called "raising 838 442 to the power 2", or "838 442 squared".
The square of 838 442 is 702 984 987 364 because 838 442 × 838 442 = 838 4422 = 702 984 987 364.
As a consequence, 838 442 is the square root of 702 984 987 364.
The multiples of 838 442 are all integers evenly divisible by 838 442, that is all numbers such that the remainder of the division by 838 442 is zero. There are infinitely many multiples of 838 442. The smallest multiples of 838 442 are: