It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 134 742 is not a prime number.
For example, 134 742 can be divided by 2: 134 742 / 2 = 67 371.
For 134 742 to be a prime number, it would have been required that 134 742 has only two divisors, i.e., itself and 1.
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134 742 is an even number, because it is evenly divisible by 2: 134 742 / 2 = 67 371.
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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 134 742 is about 367.072.
Thus, the square root of 134 742 is not an integer, and therefore 134 742 is not a square number.
The square of a number (here 134 742) is the result of the product of this number (134 742) by itself (i.e., 134 742 × 134 742); the square of 134 742 is sometimes called "raising 134 742 to the power 2", or "134 742 squared".
The square of 134 742 is 18 155 406 564 because 134 742 × 134 742 = 134 7422 = 18 155 406 564.
As a consequence, 134 742 is the square root of 18 155 406 564.
The multiples of 134 742 are all integers evenly divisible by 134 742, that is all numbers such that the remainder of the division by 134 742 is zero. There are infinitely many multiples of 134 742. The smallest multiples of 134 742 are: