It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 998 563 is not a prime number.
For example, 742 998 563 can be divided by 97: 742 998 563 / 97 = 7 659 779.
For 742 998 563 to be a prime number, it would have been required that 742 998 563 has only two divisors, i.e., itself and 1.
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742 998 563 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 742 998 563 is about 27 258.000.
Thus, the square root of 742 998 563 is not an integer, and therefore 742 998 563 is not a square number.
The square of a number (here 742 998 563) is the result of the product of this number (742 998 563) by itself (i.e., 742 998 563 × 742 998 563); the square of 742 998 563 is sometimes called "raising 742 998 563 to the power 2", or "742 998 563 squared".
The square of 742 998 563 is 552 046 864 620 064 960 because 742 998 563 × 742 998 563 = 742 998 5632 = 552 046 864 620 064 960.
As a consequence, 742 998 563 is the square root of 552 046 864 620 064 960.
742 998 563 is a number with 9 digits.
The multiples of 742 998 563 are all integers evenly divisible by 742 998 563, that is all numbers such that the remainder of the division by 742 998 563 is zero. There are infinitely many multiples of 742 998 563. The smallest multiples of 742 998 563 are: