It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 148 742 is not a prime number.
For example, 148 742 can be divided by 2: 148 742 / 2 = 74 371.
For 148 742 to be a prime number, it would have been required that 148 742 has only two divisors, i.e., itself and 1.
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148 742 is an even number, because it is evenly divisible by 2: 148 742 / 2 = 74 371.
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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 148 742 is about 385.671.
Thus, the square root of 148 742 is not an integer, and therefore 148 742 is not a square number.
The square of a number (here 148 742) is the result of the product of this number (148 742) by itself (i.e., 148 742 × 148 742); the square of 148 742 is sometimes called "raising 148 742 to the power 2", or "148 742 squared".
The square of 148 742 is 22 124 182 564 because 148 742 × 148 742 = 148 7422 = 22 124 182 564.
As a consequence, 148 742 is the square root of 22 124 182 564.
The multiples of 148 742 are all integers evenly divisible by 148 742, that is all numbers such that the remainder of the division by 148 742 is zero. There are infinitely many multiples of 148 742. The smallest multiples of 148 742 are: