It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 248 is not a prime number.
For example, 742 248 can be divided by 2: 742 248 / 2 = 371 124.
For 742 248 to be a prime number, it would have been required that 742 248 has only two divisors, i.e., itself and 1.
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742 248 is an even number, because it is evenly divisible by 2: 742 248 / 2 = 371 124.
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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 742 248 is about 861.538.
Thus, the square root of 742 248 is not an integer, and therefore 742 248 is not a square number.
The square of a number (here 742 248) is the result of the product of this number (742 248) by itself (i.e., 742 248 × 742 248); the square of 742 248 is sometimes called "raising 742 248 to the power 2", or "742 248 squared".
The square of 742 248 is 550 932 093 504 because 742 248 × 742 248 = 742 2482 = 550 932 093 504.
As a consequence, 742 248 is the square root of 550 932 093 504.
The multiples of 742 248 are all integers evenly divisible by 742 248, that is all numbers such that the remainder of the division by 742 248 is zero. There are infinitely many multiples of 742 248. The smallest multiples of 742 248 are: