It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 889 528 is not a prime number.
For example, 742 889 528 can be divided by 2: 742 889 528 / 2 = 371 444 764.
For 742 889 528 to be a prime number, it would have been required that 742 889 528 has only two divisors, i.e., itself and 1.
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742 889 528 is an even number, because it is evenly divisible by 2: 742 889 528 / 2 = 371 444 764.
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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 742 889 528 is about 27 256.000.
Thus, the square root of 742 889 528 is not an integer, and therefore 742 889 528 is not a square number.
The square of a number (here 742 889 528) is the result of the product of this number (742 889 528) by itself (i.e., 742 889 528 × 742 889 528); the square of 742 889 528 is sometimes called "raising 742 889 528 to the power 2", or "742 889 528 squared".
The square of 742 889 528 is 551 884 850 812 062 784 because 742 889 528 × 742 889 528 = 742 889 5282 = 551 884 850 812 062 784.
As a consequence, 742 889 528 is the square root of 551 884 850 812 062 784.
742 889 528 is a number with 9 digits.
The multiples of 742 889 528 are all integers evenly divisible by 742 889 528, that is all numbers such that the remainder of the division by 742 889 528 is zero. There are infinitely many multiples of 742 889 528. The smallest multiples of 742 889 528 are: