It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 019 999 is not a prime number.
For example, 742 019 999 can be divided by 7: 742 019 999 / 7 = 106 002 857.
For 742 019 999 to be a prime number, it would have been required that 742 019 999 has only two divisors, i.e., itself and 1.
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742 019 999 is an odd number, because it is not evenly divisible by 2.
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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 742 019 999 is about 27 240.044.
Thus, the square root of 742 019 999 is not an integer, and therefore 742 019 999 is not a square number.
The square of a number (here 742 019 999) is the result of the product of this number (742 019 999) by itself (i.e., 742 019 999 × 742 019 999); the square of 742 019 999 is sometimes called "raising 742 019 999 to the power 2", or "742 019 999 squared".
The square of 742 019 999 is 550 593 678 915 960 000 because 742 019 999 × 742 019 999 = 742 019 9992 = 550 593 678 915 960 000.
As a consequence, 742 019 999 is the square root of 550 593 678 915 960 000.
742 019 999 is a number with 9 digits.
The multiples of 742 019 999 are all integers evenly divisible by 742 019 999, that is all numbers such that the remainder of the division by 742 019 999 is zero. There are infinitely many multiples of 742 019 999. The smallest multiples of 742 019 999 are: