It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 104 742 is not a prime number.
For example, 104 742 can be divided by 2: 104 742 / 2 = 52 371.
For 104 742 to be a prime number, it would have been required that 104 742 has only two divisors, i.e., itself and 1.
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104 742 is an even number, because it is evenly divisible by 2: 104 742 / 2 = 52 371.
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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 104 742 is about 323.639.
Thus, the square root of 104 742 is not an integer, and therefore 104 742 is not a square number.
The square of a number (here 104 742) is the result of the product of this number (104 742) by itself (i.e., 104 742 × 104 742); the square of 104 742 is sometimes called "raising 104 742 to the power 2", or "104 742 squared".
The square of 104 742 is 10 970 886 564 because 104 742 × 104 742 = 104 7422 = 10 970 886 564.
As a consequence, 104 742 is the square root of 10 970 886 564.
The multiples of 104 742 are all integers evenly divisible by 104 742, that is all numbers such that the remainder of the division by 104 742 is zero. There are infinitely many multiples of 104 742. The smallest multiples of 104 742 are: