It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 73 664 009 is not a prime number.
For example, 73 664 009 can be divided by 17: 73 664 009 / 17 = 4 333 177.
For 73 664 009 to be a prime number, it would have been required that 73 664 009 has only two divisors, i.e., itself and 1.
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73 664 009 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 73 664 009 is about 8 582.774.
Thus, the square root of 73 664 009 is not an integer, and therefore 73 664 009 is not a square number.
The square of a number (here 73 664 009) is the result of the product of this number (73 664 009) by itself (i.e., 73 664 009 × 73 664 009); the square of 73 664 009 is sometimes called "raising 73 664 009 to the power 2", or "73 664 009 squared".
The square of 73 664 009 is 5 426 386 221 952 081 because 73 664 009 × 73 664 009 = 73 664 0092 = 5 426 386 221 952 081.
As a consequence, 73 664 009 is the square root of 5 426 386 221 952 081.
73 664 009 is a number with 8 digits.
The multiples of 73 664 009 are all integers evenly divisible by 73 664 009, that is all numbers such that the remainder of the division by 73 664 009 is zero. There are infinitely many multiples of 73 664 009. The smallest multiples of 73 664 009 are: