It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 416 is not a prime number.
For example, 742 416 can be divided by 2: 742 416 / 2 = 371 208.
For 742 416 to be a prime number, it would have been required that 742 416 has only two divisors, i.e., itself and 1.
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742 416 is an even number, because it is evenly divisible by 2: 742 416 / 2 = 371 208.
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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 742 416 is about 861.636.
Thus, the square root of 742 416 is not an integer, and therefore 742 416 is not a square number.
The square of a number (here 742 416) is the result of the product of this number (742 416) by itself (i.e., 742 416 × 742 416); the square of 742 416 is sometimes called "raising 742 416 to the power 2", or "742 416 squared".
The square of 742 416 is 551 181 517 056 because 742 416 × 742 416 = 742 4162 = 551 181 517 056.
As a consequence, 742 416 is the square root of 551 181 517 056.
The multiples of 742 416 are all integers evenly divisible by 742 416, that is all numbers such that the remainder of the division by 742 416 is zero. There are infinitely many multiples of 742 416. The smallest multiples of 742 416 are: