It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 789 134 is not a prime number.
For example, 789 134 can be divided by 2: 789 134 / 2 = 394 567.
For 789 134 to be a prime number, it would have been required that 789 134 has only two divisors, i.e., itself and 1.
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789 134 is an even number, because it is evenly divisible by 2: 789 134 / 2 = 394 567.
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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 789 134 is about 888.332.
Thus, the square root of 789 134 is not an integer, and therefore 789 134 is not a square number.
The square of a number (here 789 134) is the result of the product of this number (789 134) by itself (i.e., 789 134 × 789 134); the square of 789 134 is sometimes called "raising 789 134 to the power 2", or "789 134 squared".
The square of 789 134 is 622 732 469 956 because 789 134 × 789 134 = 789 1342 = 622 732 469 956.
As a consequence, 789 134 is the square root of 622 732 469 956.
The multiples of 789 134 are all integers evenly divisible by 789 134, that is all numbers such that the remainder of the division by 789 134 is zero. There are infinitely many multiples of 789 134. The smallest multiples of 789 134 are: